LABORATORY MANUAL For New York State Health Officers Prepared by the DIVISION OF LABORATORIES AND RESE ARCH Augustus B. Wadsworth, M. D. Director ALBANY J. B. LYON COMPANY, PRINTERS 1920 DIVISION OF LABORATORIES AND RESEARCH STATE DEPARTMENT OF HEALTH Augustus B. Wadsworth, M. D., Director Paul B. Brooks, M. D., Assistant Director Ila M. Dutton, Executive Clerk Diagnostic Laboratories Ruth Gilbert, Bacteriologist in charge Virginia H. Langworthy, Assistant Bacteriologist F. Constance Stewart, Assistant Bacteriologist Antitoxin, Serum and Vaccine Laboratories Mary B. Kirkbride, Bacteriologist in charge Analytical Chemical Laboratories Leonard M. Wachter, Chemist in charge F. Wellington Gilcreas, Wa/er Analyst 3 CONTENTS PAGE Preface 7-8 Introduction JL; 9 Part I - Local public health laboratories 11 Application for approval 11-12 Questionnaire on methods used in the complement fixation test for syphilis 12-13 Standard Methods 13 Diphtheria ,. 13-14 Tuberculosis 14 Typhoid fever 14-19 Gonorrhea 19-20 Syphilis 20 Records 20-21 Bacterial count of milk 22-23 Bacteriological examination of water 23-24 Sanitary chemical examination of water 24-26 List of approved laboratories 27-32 Part II - The laboratory service of New York State in the diagnosis, prevention, and cure of disease 33 Cancer 33-34 Diphtheria 34-49 Dysentery, bacillary 49-51 Malaria 51 Meningitis 52-54 Miscellaneous examinations 55-5S • Ophthalmia neonatorum 58 Pertussis (whooping cough) 58-59 Pneumonia 59-66 Rabies 66-69 Smallpox 69-70 Syphilis, gonorrhea and chancroid :.... 70-86 Tetanus 87-90 Tuberculosis 90-97 Typhoid and paratyphoid fever 97-104 Procedure of recording and reporting the results of laboratory examina- tions 104-106 Administrative procedures 106-113 The collection of samples of water, sewage and ice for bacterial and chemical examination 113-126 Part III - Summary of laws and regulations relating to laboratories and laboratory specimens 127-131 5 PREFACE Public health, work during the last decade has wonderfully broadened its scope. It now reaches out into new fields and gathers into its growing corps of workers all those who in any capacity whatever minister to the sick, protect individuals or com- munities from infectious or communicable disease, regulate per- sonal hygiene, or industrial sanitation, or safeguard workers against disabilities and incapacities. This public health work demands of all incomers to its ranks a wider vision in their work than is required in any of the chosen fields from which they have come. Physicians accustomed to cure individuals must assume the larger responsibilities of preventive medicine. Similarly the public health nurse accustomed to care for cases of illness, to relieve suffering and to expedite the recovery of patients, must extend her sphere of usefulness, cooperating with both physician and health officer. The early recognition of disease is the basis of all preventive medicine. It is largely for this very purpose that so many and such varied agencies 'have been marshalled to aid the expert in public health; but the most fundamental of all the agencies which have been developed is the laboratory. The laboratory is funda- mental and essential because accurate methods of analysis are used and definitely significant facts are elicited by them. It is not necessary for health officers, physicians or others interested in public health work to become experienced in the technical procedures of the laboratory, but they must be sufficiently well-informed to use the laboratory promptly and effectively whenever the occasion requires. In any district where public health officials are at work they should know definitely what laboratory facilities are available. In the State of New York the central laboratory of the Depart- ment of Health is located on New Scotland avenue in the city of Albany, and the branch laboratory is located in the building of the New York University and Bellevue Medical School, 338 E. 26th Street, New York City. In various cities and counties of 7 8 Preface the State there are municipal laboratories maintained either by the city or the county, cooperating with the State laboratory at Albany. Standard methods for the various technical procedures have been agreed upon, making all the work done by these laboratories uniform throughout the State. Comparison of the efficiency of the services of different laboratories and the uni- formity of their reports is constantly made through their coopera- tion with the central laboratory in Albany. Specimens are sent in duplicate for examination and report. Nowhere else is there to be found a laboratory service for the civil population organized into such a complete unit. INTRODUCTION This manual has been written primarily for the physicians and health officers of New York State, but it contains information for others who must use the laboratory. It is only through complete cooperation that the service can be most effectively developed. Whoever uses it should not overlook the fact that the activities of the State laboratory are carried on by a large organization which is constantly being adapted to changing conditions and varying demands and that it is dependent upon postal, telegraph and trans- portation services; hence, the importance of reporting immediately any faults in the service whatever their nature and especially any suggestions for improvement. If physicians are to use the laboratory service of the State they must know what laboratories are available, where they are located, what they will and can do for them, and what standards of work are maintained. Finally, they must know how the laws of the State require them to use the laboratory. The manual is thus divided into three sections. The first section deals with the approved laboratories of the State. The second describes the work which they may be called upon to do in the diagnosis, pre- vention or cure of disease. In the third section state laws and regulations governing the use and operation of laboratories are abstracted so that any one who is interested may gain the neces- sary information, but these abstracts should not be regarded as authoritative interpretations. References to the law are given for those seeking complete and accurate information. Need for cooperation local laboratories Classlflcatfon) of Information in manual 9 PART I In. certain, instances the laws of the State require examinations to be made in laboratories approved by the Commissioner of Health. Such examinations when made in other laboratories thus have no standing in the courts. The attached table (see pages 27 to 32) gives a list of the approved laboratories and the extent to which their work has been approved. Many of the approved laboratories are limited in the scope of their work and are not equipped for all branches of laboratory work, but they can at all times refer specimens for examination to the central laboratory in Albany. A mobile unit has been prepared which it is hoped will always be ready in emergencies to support the local laboratories in the field. The laboratory at Albany should be notified promptly whenever there is any pros- pect that emergencies will arise. Certain steps must be taken in order to secure the approval of the Commissioner of Health, and there are certain minimum ■standards of work to be maintained, before approval is issued. The approval is issued for one year. On or before January first of each year the person in charge of an approved laboratory is required to certify that the requirements have been fulfilled and the standards maintained before a reapproval is issued. In order that health officers and other physicians may know just what is required of these approved laboratories the application blanks, questionnaires and standard methods are presented below: LOCAL PUBLIC HEALTH LABORATORIES Mobile salt available la emergencies Application for the Approval of Public Health Laboratory Service (Health officer, or supporting board, director) hereby makes application for approval by the State Commissioner of Health of the public health work performed by located at (Name of laboratory) in charge of (Give full address) (Name and title of person in charge) 11 12 (Describe educational qualifications and experience) with a staff of. (Number of assistants, and whether on full or part time) This laboratory is located. (Describe where located, number of rooms occupied, etc.) and has the following equipment all of which is in good condition: Microscope Centrifuge Gas incubator Electric incubator .Dark field Autoclave Arnold sterilizer Hot air sterilizer The scope of the work of the laboratory includes. (Indicate by means of a cross (x) in which class your laboratory should be included) County Municipal Hospital Teaching institution Is county work also done?. Is municipal work also done? Private Institutional Is private work also done ?. . It is agreed that: 1 The technique employed in the diagnostic examination of specimens from suspected cases of communicable diseases and in the examination of milk and water will be that approved by the laboratory of the State Department of Health. 2 An accurate record will be kept of the daily work, and monthly reports filed with the laboratory of the State Department of Health on blanks pro- vided for the purpose. 3 All stained microscopical preparations (slides) on which the reports are made will be kept on file for a period of six months. Date. (Official making application) Questionnaire on the Methods Used in Laboratories Throughout the State for the Wassermann Test 1 What is your average number of tests per month? 2 What is the average age of specimens tested? 3 How frequently is the test performed? 4 Do you use the reagents in the volume recommended by Wassermann, 5 cc. in each tube, or %• or 1/10 of this volume? 13 5 Give in detail your method of standardizing the hemolytic system, includ- ing the following points: Method of preparation of amboceptor; method of standardization of amboceptor; dilution used (give the amount and dilution, for example, 1 cc. of a 1-500 dilution) ; number of pigs bled for each day's work; length of time complement is kept before using; dilution of comple- ment; method of testing for hemolytic activity and nonspecific fixability; kind of red blood cells used (sheep, human) ; where obtained; length of time cells are kept before using; method of washing and diluting. 6 How many antigens are used in your routine test? How are they pre- pared and standardized? How frequently are they standardized? 7 Describe your test in detail, including the following points: Method of inactivating serum; number of units of each reagent used; amounts of patient's serum or spinal fluid used in the test; temperature and time allowed for fixation (ice-box, incubator, waterbath) ; controls used; antigen controls, serum controls (positive, negative and anticomplementary serum controls) ; controls on technical inaccuracies; tests for natural amboceptor; method of reading tests and reporting results. 8 What methods are used in the washing and sterilizing of glassware? Agreement on Conditions to be Observed and Methods to be Followed, in Making Diagnostic Examinations in Diphtheria, Tuberculosis, Typhoid Fever and Other Communicable Diseases Laboratories undertaking examinations for the diagnosis of diphtheria,, tuberculosis, typhoid fever and other communicable diseases shall be properly equipped with standard apparatus and appliances for this work. Directors of laboratories, approved for these examinations, should preferably be graduates of medicine, or bacteriologists of sufficient education and experience to interpret the significance of the results of laboratory examinations. Members of the staff who make diagnoses shall have been trained under qualified experts and shall have had not less than one year's experience in a bacteriological laboratory. Diphthebia The results of direct microscopic examinations of spreads of material from disease processes may be reported when such examinations demonstrate the presence of morphologically characteristic diphtheria bacilli. The results of such examinations shall always be confirmed by the microscopic examination of cultures. Diphtheria cultures shall be made by transferring material or exudate from the disease processes on a sterile swab directly to coagulated blood serum medium (Loeffler). The surface of the medium is thoroughly inoculated with the culture material. Cultures which show liquefaction or other evidences of contamination, which are excessively dry, or which have not been taken properly, shall be considered unsatisfactory for examination. Cultures to be examined for diphtheria bacilli shall be incubated at 37° C. for a minimum period of ten hours before microscopic preparations are made. Microscopical preparations are to be stained with Loeffler's alkaline methylene blue stain for one minute. The absence of diphtheria bacilli shall not be so reported until the culture has been incubated for at least 15 hours and a preparation of it has been examined for at least one minute under a 1/12 oil-immersion objective. 14 The reports of the examination shall be: Diphtheria bacilli found; diph- theria bacilli not found; examination unsatisfactory; (a) medium contami- nated, liquefied or dried; (b) culture not properly taken; (c) results doubtful. In all cases giving a history of infection, in which diphtheria-like organisms are found, these organisms shall be regarded as true diphtheria bacilli unless they are tested and found nonvirulent. In cases not giving a history of infection distinction between Bacillus Hoffmanni, pseudo-diphtheria bacilli and the true diphtheria bacilli may be made by morphological examination. Tuberculosis Sputum which is to be examined for the presence of tubercle bacilli should be coughed up from the lung and collected in clean sterile containers. Speci- mens obtained on rising in the morning should be secured whenever this1 is possible. Spreads of a representative part of the specimen, the cheesy clumps of lung exudate being selected when present, are prepared, dried in the air and carefully fixed in the flame. They are then stained by the Ziehl-Neelson method, that is, stained for three to five minutes in steaming carbol-fuchsin or for twenty-four hours in carbol-fuchsin kept at room temperature, decolor- ized in acid alcohol containing 1-3 per cent hydrochloric acid and counter- stained with methylene blue. The method shall be tested by staining prepara- tions of sputum in which tubercle bacilli are known to be present. The absence of tubercle bacilli shall be reported only after the specimen has been examined under the microscope with a 1/12 oil-immersion objective for at least five minutes. *A positive diagnosis shall not be made unless several acid fast bacilli are found. Typhoid Fever Specimens of dried blood or of blood serum which are to be used in making the agglutination test are diluted 1 to 10, 1 to 20, and 1 to 40, using either distilled water or physiological salt solution. The dilutions of dried blood may be compared with standard dilutions of known quantities of blood which have dried and then been diluted with water. A culture of the Bacillus typhosus which agglutinates readily shall be selected for the test. This culture in broth shall be incubated at from 20° C. to 37° C. for not more than eighteen hours. The culture shall not be dis- turbed and only the surface used for the test, or if the growth is too heavy it may be diluted to correspond to a turbidity standard. If a suspension in saline of a fresh agar culture after eighteen hours' incubation at 37° C. is used, the clumps shall be allowed to settle. This culture or suspension shall be tested with anti-typhoid serum to prove its agglutinability. One loop of this culture and one loop of the 1 to 10, 1 to 20, and 1 to 40 dilutions of dried blood or of blood serum are mixed on the cover glass. The hanging drops thus prepared, together with those of culture and salt solution or normal blood or blood serum for purposes of control, are examined after an Agglutination Test (Widal) * If other stains recommended for staining acid fast bacteria are preferred, describe in detail the technique desired. 15 incubation period of one hour at 37° C. The readings of the agglutination reactions shall then be made in terms of the final dilutions of 1 to 20, 1 to 40, and 1 to 80. The reaction should not be considered significant unless there is loss of motility and a definite clumping in the 1 to 40 dilution in one hour. The reaction in the 1 to 20 and 1 to 80 dilutions shall also be studied for purposes of comparison.* Routine Procedube for the Isolation of Typhoid, Paratyphoid, and Dysentery Bacilli from Feces The examination shall be made immediately. Typhoid bacilli disappear from more than 10 per cent of the specimens of feces in twenty-four hours. Paratyphoid organisms do not degenerate so rapidly. If the specimens are sent to the laboratory emulsified in 30 per cent chemically pure glycerine, the typhoid bacilli are not so readily killed. I Preparation of specimen for plating When specimens are received undiluted, make a thin suspension of the feces in broth (using 10 parts of liquid to 1 part solid). Allow the emulsion to stand for about 10 minutes so that coarser particles may settle. When the specimens are received suspended in glycerine, they may be plated without further dilution. II Plating of specimens For each specimen at least six plates shall be used. Endo's medium, or Kendall's modification of Endo's medium, shall be used for at least part of the plates. Part of the plates used may contain brilliant green, or eosin blue medium if desired. (See preparation of media.) Place three or four loopfuls from the upper layer of the emulsion of feces upon the first plate and two or three loopfuls upon the fourth plate. With a sterile glass or wire plating rod spread the emulsion evenly over the sur- face of the plates. Starting with the first plate, all of the plates are seeded in succession. For purposes of comparison, control plates of each type of medium employed are made at the same time and inoculated with a pure culture of B. typhosus. Incubate plates 18-24 hours at 37° C. Ill Fishing of colonies After incubation the plates are examined under the microscope or hand lens. Typical or suggestive colonies (see table 1) are fished with a platinum wire and transferred to a slant of agar medium, containing the three sugars (1 per cent lactose, 1 per cent saccharose, 0.05 per cent dextrose) ; inoculating one tube from each colony. The medium is inoculated by deep puncture into the butt and along the surface of the slant. Incubate tubes 18-24 hours. Suggestive colonies may be emulsified in a drop of salt solution on a clean glass slide, and a loopful of this emulsion mixed with a drop of a 1-50 dilution of the immune serum. When the side is tilted with the hand for a few minutes the bacilli from positive colonies should show definite agglutina- * The same methods may be used for paratyphoid agglutination tests. 16 tion, while the bacilli from negative ones should be unchanged, the drop remaining homogeneous in appearance; the salt solution emulsion serves as a control. IV Motility tests The reactions of the triple sugar slants are recorded, and if any are typical of typhoid, paratyphoid or dysentery (see table 2), inoculations are made from the slants into sterile broth and the broth incubated. If after two hours the broth is cloudy, a hanging drop is made and examined under the microscope. B. typhosus and B. paratyphosus are motile, while all strains of B dysenteriae are nonmotile. V Agglutination tests If the organisms are motile, agglutination tests are made with typhoid or paratyphoid immune serum, depending upon the absence or presence of gas in the triple sugar slants (see table 2). If the organisms are not motile, agglu- tination tests are made with polyvalent dysentery immune serum, provided that the reaction of the triple sugar slant culture is typical. In these tests a serum of known specificity must be used, the titre having been previously tested.* (Immune sera for use in agglutination tests may be obtained from the State laboratory.) Positive control test With every agglutination test a positive control shall be made in the same manner as the regular test, except that a stock culture of the homologous organism is used in place of the culture that is being tested. VI Results of agglutination tests After tubes have been shaken, incubate two hours and let stand in icebox over night. If the reaction is positive, a flocculent precipitate should be present in the bottom of the tubes with the supernatant fluid clear; when gently shaken the precipitate persists in definite clumps. The negative control should show uniform turbidity. If an organism with characteristic morphology and staining properties, which has reacted typically on the sugars, fails to agglutinate, transfer it to plain agar, and, after making several subcultures, try the agglutination test again. This time positive results may be obtained, for it is a well-established fact that organisms freshly isolated from the body do not always agglutinate readily. VII Fermentation reactions If the motility is indefinite it is well to inoculate a series of eight carbo- hydrate serum water tubes with the culture to insure an accurate report. * Cultures which agglutinate in the polyvalent dysentery immune serum, may be sent to the State Laboratory at Albany for the determination of the- type. 17 Make readings of these sugar reactions after 24 hours' and 48 hours' incu- bation. (See table 2.) VIII Reports of examinations shall be (1) B. typhosus, or B. paratyphosus A or B, or B. dysenteriae found. (2) B. typhosus, B. paratyphosus, B. dysenteriae, not found. (3) Examination unsatisfactory - not sufficient material sent - specimen spoiled, delayed in transit. IX Preparation of media (A) Endo medium, "Kendall's modification." To 100 cc. of melted sterile beef extract 3 per cent agar (reaction + 0.3 phenolphthalein) is added 1 per cent lactose, 1 cc. of fuchsin indicator, and 0.2 cc. of N/l NaOH. (B) Brilliant green medium To 100 cc. of melted sterile beef extract 1.5 per cent agar (reaction + 0.1 phenolphthalein) is added 1 per cent lactose 0.1 per cent dextrose and 3 cc. of Andrade indicator. Test a sample of each new lot of medium to determine the reaction by cooling in a test tube, add enough N/l HC1 or N/l NaOH to make the medium a faint pink when cool. Just before pouring plates add a 0.1 per cent aqueous solution of brilliant green, the object of which is to inhibit the growth of B. coli. It is necessary to standardize the amount of this brilliant green solution to be used for every new lot of medium in the following way: Pour a series of 6 plates, 2 with 0.1 cc. of the green per 100 cc. of medium, 2 with 0.2 cc. of green per 100 cc. and 2 with 0.3 cc. of green per 100 cc. Each set of plates containing a different percentage of dye is then inoculated with stock strains of B. coli, B. typhosus, B. para- typhosus, and B. dysenteriae, only half a plate being used for each seeding. After incubation observe growth and choose amount of dye which best inhibits growth of B. coli without materially affecting the growth of the typhoid-para- typhoid group. Brilliant green usually inhibits the growth of B. dysenteriae. (C) Eosin methylene blue medium. To 100 cc. of melted sterile beef extract 2 per cent agar (reaction + 0.1 phenolphthalein) is added 0.5 per cent lactose, 0.5 per cent saccharose, 1% cc. of a 3 per cent aqueous solution of eosin and 2 cc. of a 0.5 per cent aqueous solution of methylene blue. It is advisable to use porous top plates for this work and after hardening at room temperature to keep them in the icebox until needed. Plates over a week old are not satisfactory for use. (D) Triple sugar medium Recent investigation has shown that Russell's double sugar medium, modi- fied by the addition of 1 per cent saccharose, offers certain advantages, especially when isolating members of the paratyphosus group. A considerable percentage of nonlactose fermenting organisms which produce gas in dextrose 18 also produce acid on the slant by fermenting saccharose. This reaction sepa- rates these intermediates from the typhoid, paratyphoid and dysentery groups which do not produce acid on slants of this medium. X Preparation of dyes and indicators (A) Andrade indicator .5 per cent aqueous acid fuchsin 100 cc. N/l NaOH 16 cc. Prepare at least one hour before use. (B) Fuchsin indicator Saturated alcoholic solution of basic fuchsin 1 cc. 10 per cent aqueous solution of anhydrous sodium sulphite 10 cc. (C) 0.1 per cent brilliant green Brilliant green 0.1 gm. Boiling distilled water 100 cc. (D) 0.5 per cent methylene blue Methylene blue 0.5 gm. Distilled water' 100 cc. (E) 3 per cent eosin yellow French pure eosin or anilin red 3 gm. Distilled water 100 cc. Table 1 Tabulations of the Diagnostic Characteristics of the Typhoid, Paratyphoid, and Dysentery Bacilli Typhoid Para A and B Dysentery (Shiga) Dysentery (Mt. Desert) Dysentery (Flexner) B. Coli (Communis) Brilliant green. Colony colorless by di- rect light, translu- cent, greenish by transmitted light, border undulated, grape leaf, character marked. Colony similar to typhoid, except for rounded edges and lack of grape leaf character. No growth No growth. No growth. Greatly inhibited. Colonies pink- ish, regular bor- der. Endo Colony similar, less translucent, grape leaf character not so marked. Similar Colony color- less, translu- cent border regular; no granulation; no grape leaf character. Similar to Shiga. Similar to Shiga. Colonies pink or red nearly opa- que under low power granular and brownish border. Eosin meth- ylene blue Colony colorless, trans- lucent. Similar Similar Similar to Shiga. Similar to Shiga. Colonies colorless at edge, centers dark blue al- most black, opa- que, border reg- ular. Eosin green. Colony similar, grape leaf character marked. Similar No growth No growth. No growth. Colonies pinkish, dark centers. 19 Tabulations of the Diagnostic Characteristics of the Typhoid, Paratyphoid, and Dysentery Bacilli Table 2 Typhoid Para A and B Dysentery (Shiga) Dysentery (Mt. Desert) Dysentery (Flexner) B. Coli (Communis) Dextrose A A G A A A A G Leavulose A A G A A A A G Galactose A A G A A A A G Mannit A A G O A A A G Maltose A A G O 0 A A G Lactose 0 0 O 0 0 A G Saccharose 0 0 0 0 Weak A 0 Dextrin A Weak A 0 o A Weak A Triple sugar slants. * i * * * § Motility • Motile Motile Not motile Not motile Not motile Motile Gram stain Gram. neg. Gram. neg. Gram. neg. Gram. neg. Gram. neg. Gram. neg. * Acid in butt, colorless slant, no gas. t Acid and gas in butt, colorless in slant. § Acid and gas in butt, acid in slant. Note.- Readings of the reaction in the sugar serum water are made after 24 and 48 hours incubation. A = acid. G = gas. O = no change. Gonorrhea The discharge shall be spread upon a slide, fixed in the flame and then stained by the method of Gram. One of the following methods shall be used.* A 1 Freshly prepared Koch-Ehrlich anilin-water gentian-violet for at least two minutes. 2 Blot dry. Do not wash. 3 Gram's iodine solution, one minute. Dry thoroughly. 4 Decolorize with 95 per cent alcohol until the addition of fresh alcohol no longer removes any of the stain. Wash in water. 5 Counterstain with freshly prepared 10 per cent dilution of a saturated aqueous solution of Bismarck brown. B 1 Carbol-gentian-violet, one minute. Blot dry. 2 Gram's iodine, one minute. Blot dry. 3 Decolorize and proceed as above. Note.- Koch-Ehrlich anilin-gentian-violet is prepared as follows: Satur- ated alcoholic solution of gentian-violet, one part, saturated solution of anilin water, nine parts. The anilin water is obtained by adding one part of anilin oil to nine parts of water. It is filtered through wet filter-paper until abso- lutely clear. Carbol-gentian-violet is prepared by adding one part of a saturated alcoholic solution of gentian-violet to nine parts of 5 per cent carbolic acid. Care should be taken to insure complete saturation of the alcoholic solution of the * If another modification of the Gram stain is preferred, give a careful description of the formula and technique desired. 20 gentian-violet. This stain need not be freshly prepared as it keeps indefinitely. It is filtered before using. The nuclei of the polymorphonuclear leucocytes should be faintly stained with the gentian-violet. Other counter stains, unless greatly diluted, shall not be substituted as these may replace the gentian-violet in the Gram positive organisms. The morphological diagnosis is to be made when organisms are intracellular and the morphological characteristics, grouping, and staining reactions are typical. The reliability of the staining reagents shall in every case be con- trolled by testing them with smears of known Gram positive and Gram nega- tive bacteria. It is necessary to bear in mind the fact that the discharges from mucous membranes, commonly the site of infections with the gonococcus, not infrequently contain Gram negative cocci which are not gonococci. The spinal exudate obtained by spinal puncture under strictest aseptie precautions shall be centrifugalized, the sediment spread upon a slide, fixed in the flame and stained by the method of Gram. The morphological diagnosis- shall be made only when typical intra-cellular cocci in pairs or tetrads are- found. Epidemic Cerebrospinal Meningitis Syphilis The complement-fixation test for the diagnosis of syphilis shall be attempted' only by those who are especially trained and qualified to do the work. It is- undesirable for a laboratory to undertake the performance of the complement, fixation test for syphilis unless the number of specimens examined is sufficient to insure adequate control of the reagents and methods used. Blood serum shall be tested for complement-fixation by the method of Wassermann, or standard modifications of it, with not less than two antigens,, one of which shall be cholesterinized. All laboratories undertaking the per- formance of this test are required to file an accurate description of the- reagents and methods used with the laboratory of the Department at Albany- before an approval is issued. Direct Examination for Treponema Pallidum (The infectious agent of syphilis) Wash the suspected chancre with soap and water, rinse and dry. This should.' remove nearly all the contaminating organisms including the Spirochaeta refringens. Lightly curette the surface of the sore, wipe off the blood., then squeeze the surrounding tissues until a drop of serum, containing as little blood as practicable, collects. Transfer this drop to a clean slide, cover at once with a cover glass. Examine immediately over a dark field for charac- teristic organisms. Enlarged glands may be examined by aspirating a drop of serum from them- with a hypodermic syringe. Report of examination shall be, Treponema pallidum found, or Treponema pallidum not found. Accurate reports of all examinations shall be kept on file for permanent, records. The records of the examinations shall be made with ink. Every specimen received for examination shall be given an identification number as it Records 21 is opened. The stained microscopical preparations (slides) on which the re- ports are made, shall be kept on file for a period of at least six months. All of these microscopical preparations shall be filed regardless of whether the results of the examinations were positive or negative. Each microscopic preparation shall be labeled at least with the identification number of the specimen and the date received. This data shall be put on the slide with a diamond point pencil, on a gummed paper label, or each slide kept in an envelope with the required data written on the outside. (Wax pencils are not satisfactory for labeling the slides.) Not more than three smears shall be made on a slide one inch by three inches in size. The immersion oil shall be removed before the slides are filed. " Whenever an examination for diagnosis by a laboratory or by any person other than the physician in charge of the person from whom the specimen is taken, if any specimen discloses the existence of a case of infectious and con- tagious or communicable disease, the person in charge of such laboratory or the person making such examination shall immediately report the same, together with all the facts in connection therewith, to the health officer of the city, town or village where srtch laboratory is situated and also to the health officer of the city, town or village from which such specimen came and shall keep a permanent record of all the facts in connection with such exami- nation, including the identity of the person from whom the specimen is taken and the name of the physician, if any, sending such specimen." (Extract from Sec. 25, Art. Ill, Public Health Law.) (The form of information blank and report slip now in use by the Labora- tory of the State Department of Health in Albany may be copied and adapted to the needs of the different laboratories throughout the State.) These laboratory records shall be kept on file where they will be available for inspection. Reports of all laboratory work for all districts of the State outside of the City of New York carried on by the laboratory shall be filed each month at the Laboratory of the State Department of Health in Albany. All doubtful results shall be reported and the slides or specimens referred to the central laboratory of the State Department of Health in Albany for confirmation. (For the purpose of determining standards of efficiency in the work, prepa- rations which have been studied or diagnosed by the staff of the central labora- tory in Albany will be sent to the different laboratories of the State for examination.) I hereby agree to fulfill all of the above specified conditions required in the diagnosis of and to certify in writing on January first of each year, to the Commissioner of Health at his request, that these conditions have been fulfilled in all the diagnostic examinations conducted in the laboratory of which I have charge. It is understood that in the event that the undersigned severs his or her connection with the laboratory, or is about to sever such connection, the Commissioner of Health will be immediately notified. (Signed) Date. 22 Agreement on conditions and methods for the determination of the bacterial count of milk Specimens of milk must be forwarded to the laboratory packed in cracked ice and in no instance shall they be examined if the ice has completely melted.. Samples of milk received in proper condition should be examined immedi- ately or be kept packed in ice until they are examined. The interval between milking and plating should never exceed forty hours. The times of milkings sampling and plating should be recorded. When the examination of milk or cream is to be made, the sample should always be carefully mixed by shaking the container twenty-five times. All precautions against contamination should be observed in opening the sample and to avoid contamination sterile apparatus should be used. Standard methods of dilution and plating in agar and counting the colonies must be used. Note.- The standards of technical procedure contained in the Provisional Report of the Laboratory Section of the American Public Health Association October 24, 1916, are recommended. The dilutions of the milk should be made by transferring 1 cubic centimeter into 99 cubic centimeters of sterile water. As many subdilutions in 99 cc. or 9 cc. of sterile water as are necessary to secure the desired final dilutions may be made preliminary to plating the milk. A separate sterile pipette should be used for making each dilution and also, a fresh sterile pipette for plating from each dilution. Record the temperature of the milk sample after withdrawing the portion for plating or have a duplicate sample that can be used for taking the tem- perature at the time of plating. The media used should contain 1,000 cubic centimeters of water, 12 grams, of oven dried agar or 15 grams of market agar (undried), 3 grams of beef extract, and 5 grams of peptone. The reaction of the finished media should be between + 0.5 .and + 1.0 to phenolphthalein indicator. Do not adjust the reaction if it lies within these limits. Ten cubic centimeters of agar media should be used for each plate. The agar should be melted and kept in a water bath at a temperature of 43° C. before pouring into plates. Incubate the plates for 48 hours at 37° C. From the different dilutions plated choose for counting those plates that come nearest to containing between 30 and 300 colonies. The whole plate should be counted. The average of at least two plates should be taken for computing the number of bacteria in the milk. Use a standard ruled counting disc for counting plates that contain a large number of colonies. Always use a hand lens magnifying 3% X. The counts should be computed in terms of a cubic centimeter and so recorded. Records of all examinations on the results of which milk or cream is graded should be kept on file and accessible in the laboratory making the examination. 23 I hereby agree to fulfill all of the above specified conditions required in the examination of milk, and to certify in writing, January first, each year to the Commissioner of Health, at his request, that these conditions have been fulfilled in all the milk examinations conducted in the laboratory of which I have charge. Date. (Signed) Agreement on conditions and methods for the bacteriological examination of water Samples of water to be forwarded to the laboratory in shipping cases that make proper provision for keeping the samples cold by the use of ice. The temperature of the samples to be not higher than 10° C. at the time of arrival at the laboratory, and to be kept cold until examined. The sample bottles to be shaken twenty-five times before removing portions for examination. To determine the presence of intestinal bacilli of the colon group, inoculate at least two fermentation tubes containing lactose broth with each volume of the water that is tested, ten cc. one cc. and one-tenth cc. volumes of potable water to be tested. When examining grossly polluted water, also test smaller volumes in order to determine the volume that will give a negative test. Absence of gas after 48 hours' incubation at 37° C. indicates the absence of the colon group. If gas is produced before or at the end of 48 hours incuba- tion make a sub-culture on an azolitmin lactose agar or an Endo plate. Acid colonies (with or without gas) on the azolitmin lactose agar plates or colonies on the Endo plates are transferred to agar slants and incubated 37° C. and identified by the reactions obtained in sub-culture of lactose broth, milk, nitrate solution, Dunham's solution and gelatin. Non-spore forming bacilli which ferment lactose broth, coagulate milk, produce nitrites and indol after four day's incubation, and do not liquefy gelatin in fourteen days at 20° C., are classified in the colon group. The complete confirmative tests for the isolation of the colon group of the 1917 edition of the Standard Methods of Water Analysis of the American Public Health Association may be used as an alternate method. This method gives a broader definition to the colon group. Thus, if the members of the colon group are not found by this method, they would not be found if the water was tested by the first method. Qualitative Examination Quantitative Examination If the water is known to contain 250 or a smaller number of bacteria per cubic centimeter, plate one cubic centimeter. If the water contains a large number per cc. dilute the sample with sterile water; one cc. of the sample to nine cc. or one cc. to ninety-nine cc. respectively, or similar further dilutions if necessary. The plating media are standard beef extract gelatin and standard beef extract agar, the reaction to be between + 0.5 and + 1.0 P. H. 24 The total count on gelatin plates to be made after forty-eight hours' incuba- tion at 20° C. Counts on agar at 37° C. to be made after twenty-four hours incubation. Except when water contains less than twenty-five bacteria per cubic centi- meter, those plates should be counted that contain between twenty-five and two hundred fifty colonies. The average of at least two plates should be taken for computing the number of bacteria per cubic centimeter in the water. Note.-All counts to be made over a standard ruled plate with a standard lens magnifying 3.5 times as recommended by the Standard Methods of Water Analysis of the American Public Health Association, 1917 edition. Records of all examinations made on samples of water shall be kept on file and accessible in the laboratory making the examination. I hereby agree to fulfill all of the above specified conditions required in the ■examination of water and to certify in writing, January first, each year, to the Commissioner of Health, at his request, that these conditions have been fulfilled in all the examinations of water from public supplies in New York State made in the laboratory of which I have charge. Date. Agreement on conditions and methods for the sanitary chemical examination of water Express results in parts per million. Color to be determined by the platinum cobalt standard. The water to be filtered through a small Berkefeld before determining the true color. Turbidity to be determined by the U. S. Geological Survey silica standard by comparison with standards in bottles or nessler jars. A properly standard- ized turbidimeter may be used. For field work the U. S. G. S. turbidity rod may be used. Odor (cold). Determine in a partially filled bottle after shaking. Odor (hot). Heat the water to nearly boiling in a partly filled tall beaker or an Erlenmeyer flask covered with a watch glass. Allow to cool and deter- mine the odor. Total solids. Evaporate a measured quantity of water in a weighed plati- num dish. Heat the residue at 105° C. for one hour; cool in a desiccator and weigh. Loss on ignition. Ignite the dish plus the total solid residue to dull redness in a radiator, cool in a desiccator and weigh. Loss in weight is the loss on ignition. Mineral residue. Total solids minus loss on ignition gives the mineral residue. Nitrogen as free or saline ammonia. Add a small amount of ignited sodium carbonate to 500 cc. of the water in a distilling flask. Distill off 3 tubes of 50 cc. each. Xesslerize. If third tube contains more than a small amount 25 of ammonia distill off one or more 50 cc. portions. Compare the nesslerized tubes with ammonium chloride standards or permanent standards adjusted to standard ammonium chloride. Nitrogen as albuminoid ammonia (total). Cool the residue from the dis- tillation of the free ammonia, add alkaline potassium permanganate, connect with the condenser and distill 5 tubes of 50 cc. each. Nesslerize and compare with the standards. Nitrogen as albuminoid ammonia (dissolved). When necessary to also determine the dissolved albuminoid ammonia, filter the water through ammonia free filter paper and proceed as above. Nitrogen as nitrites. Treat colored and turbid waters with aluminum hydrate and filter before testing. Add 2 cc. of sulphanilic acid and 2 cc. of a-napthylamine acetate to 100 cc. of the watei- in a nessler jar. Compare with standard nitrite solution treated with the same reagents in similar jars. Nitrates. Treat colored or turbid water with aluminum hydrate and filter. Evaporate 50 cc. or smaller volumes, depending on the nitrate content, in a porcelain dish on a water bath to dryness. Moisten residue with 2 cc. of phenol disulphonic acid. Rub with a glass rod. Dilute with distilled water and make distinctly alkaline with potassium hydrate. Wash into a 100 cc. nessler jar and dilute to 100 cc. Compare with standard solutions of potas- sium nitrate treated as above. If the water contains more than 20 parts per million of chlorine nearly neutralize the alkalinity with N/50 normal sulfuric acid, treat with silver sul- phate free from nitrates to remove all but 0.1 mg. of chlorine. Heat to boiling. Treat with aluminum hydrate, filter, wash with a small amount of hot water. Evaporate to dryness, moisten with 2 cc. of phenol disulphonic acid and proceed as above. Organic nitrogen. Boil off the ammonia from 500 cc. of sample. To the residue add 5 cc. of nitrogen free, concentrated sulfuric acid. Mix by shaking. Boil until copious fumes of sulfuric acid are given off and the liquid is color- less. Add crystals of permanganate until a heavy green precipitate persists in the liquid. Cool, dilute with ammonia free water. Make alkaline with 10 per cent ammonia free sodium hydrate or carbonate. Distill the ammonia and nesslerize. Oxygen consumed. Place 100 cc. or when necessary smaller volumes of the water sample diluted to 100 cc. with distilled water free from organic matter in a flask, add 10 cc. of dilute sulfuric acid (1 to 3) and 10 cc. of standard potassium permanganate. Submerge the flask in boiling water for 30 minutes. Remove from bath add 10 c.c. of standard ammonium oxalate. Then titrate the excess of ammonium oxalate with the permanganate solution. Dissolved oxygen. Dissolved oxygen is determined by the Winkler method modified as recommended by the Standard Methods of the American Public Health Association (1917). Chlorine as chlorides. Turbid and colored samples to be first clarified with aluminum hydrate. Samples of water containing small amounts of chlorine to be concentrated by evaporation. Evaporate 250 cc. to a volume of 50 cc. in a 6 inch evaporating dish. Add 1 cc. of potassium chromate indicator and titrate with standard silver nitrate. Each cc.-.0005 grams of chlorine. 26 Total hardness. Determine by the soap method. Standardize alcoholic soap solution against calcium chloride made from calc spar treated with hydro- chloric acid and evaporated several times to remove excess acid. Alkalinity. Titrate with N/50 sulfuric acid. If lacmoid is used, heat to boiling before completing the titration to remove CO2. Erythrosine may also be used in the cold. Methol orange may be used for waters that have not been treated with iron sulfate or aluminum sulfate. The 1917 edition of the Standard Methods of Water Analysis of the Ameri- can Public Health Association is recommended for details of technical procedure. Records of all examinations made on samples of water shall be kept on file and accessible in the laboratory making the examination. I hereby agree to fulfill all of the above specified conditions required in the examination of water and to certify in writing, January first, each year, to the Commissioner of Health, at his request, that these conditions have been fulfilled in all the examinations of water from public supplies in New York State made in the laboratory of which I have charge. Date. 27 Location Laboratory Classification Director or person in charge Approved for following examinations Albany Bender Hygienic Laboratory.. Private, doing municipal work. Dr. Ellis Kellert, director Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test and the direct examination for Treponema pallidum), laboratory ex- amination of milk and water. Albany Albany Hospital Laboratory. . Hospital........ Dr. G. S. Graham, director Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, syphilis (complement fixaton test and the direct examination for Treponema pallidum), bacteriological examination of milk and water. Amsterdam Julius Wasserman Laboratory. County Dr. R. Halbach, director Miss L. Rider, bacteriologist. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal meningitis, direct examination for Treponema pallidum, pneumo- coccus type differentiation, bacteriological examination of milk and water. Amsterdam Private Laboratory of Dr. Lew H. Finch. Private Dr. Lew H. Finch, director Miss Dorothy Pease, bacteri- ologist. Diphtheria, tuberculosis, typhoid and paratyhpoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, bacteriological examination of milk and water. Auburn Cayuga County Laboratory. . . County Miss R. Stephens, bacteriologist. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test), pneumo- coccus type differentiation, bacteriological examination of milk and water. Auburn Laboratories of Chemical and Microscopical Diagnosis. Private Dr. H. Davenport, director Diphtheria, tuberculosis, typhoid fever (agglutination test), gonorrhea, epidemic cerebrospinal meningitis, direct examination for Treponema pallidum, bacterio- logical examination of milk and water. Batavia Genesee County Laboratory. . County Dr. F. D. Carr, director Diphtheria, tuberculosis, typhoid fever (agglutination test), gonorrhea, epidemic cerebrospinal meningitis, bacteriological examination of milk and water. Belmont Allegany County Hygienic Laboratory. County Miss G. L. Meade, bacteriologist Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentry, gonorrhea, epidemic cerebrospinal meningitis, bacteriological examination of milk. Binghamton Nelson & Lauder Laboratory.. Private, doing municipal work. Nelson & Lauder, directors Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, direct examination for Treponema pallidum, bac- teriological examination of milk and water. Binghamton Binghamton State Hospital Laboratory Hospital Dr. H. S. Gregory, director Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test). Binghamton Kilmer Pathological Lab- oratory. Private Dr. George H. Fox, director Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test), pneumococcus type differentiation, laboratory examination of milk and water. Public Health Laboratories Approved by the State Commissioner of Health to December 1, 1920* * This list is necessarily constantly undergoing revision. Important changes in and additions to this list are published from time to time in the Health News or Bulletins of the Department. 28 Location Laboratory Classification Director or person in charge Approved for following examinations Buffalo Bureau of Laboratories, Health Department. Municipal and County. Dr. T. B. Carpenter, director. . . Diphtheria, tuberculosis, typhoid and paratyhpoid fever dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test and the direct examination for Treponema pallidum), pneumococcus type differentiation, laboratory examination of milk Buffalo Laboratory of Clinical Path ology. Buffalo General Hospital. Ontario County Laboratory.. . Clayton Laboratory Laboratory of the Clifton Springs Sanatorium. Hospital Dr. B. F. Hauenstein, director. . Dr. Byron D. Bowen, acting clinical pathologist. Dr. Wm. A. Bing, director Dr. James H. Stebbins, director. Dr. Walter S. Thomas, director. . Mrs. Margaret Schneider, bac- teriologist. and water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, syphilis (complement fixation test and the direct examination for Treponema pallidum) pneumoceocus type differentiation, laboratory examina- tion of milk and water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, bacteriological examination of milk and water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, direct examination for Treponema pallidum, laboratory examination of milk and water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test), pneumococcus type differentiation, laboratory examination of milk ♦Canandaigua. . . . County Clayton Private Hospital Clifton Springs. . . Corning Steuben County Hygienic Lab- oratory. von Wedel laboratories (also at New Rochelle and White Plains). Elmira City Laboratory, De- partment of Health. Geneva City Laboratory Livingston County Laboratory Warren County Bacteriological Laboratory. Dr. H. E. Elwood, director Dr. H. von Wedel, director. Dr. Anna M. Stuart, director. . . . Miss Mildred Ross, bacteriologist Dr. R. S. Breed, director Prof. G. A. Bailey, director Dr. Morris Maslon, director and water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, direct examination for Treponema pallidum, pneumococcus type differentiation, bacteriological ex- amination of milk and water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebro spinal meningitis, syphilis (complement fixation test), pneumococcus type differentiation, laboratory examination of milk and water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, pneumococcus type differentiation, bacteriological examination of milk and water. Laboratory examination of milk and water. Diphtheria, tuberculosis, typhoid fever (agglutination test), gonorrhea, bacteriological examination of milk and water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, pneumococcus type differentiation, laboratory examination of milk and water, Dobbs Ferry Elmira Private, doing municipal work. Geneva Municipal County County Geneseo Glens Falls Public Health Laboratories Approved by the State Commissioner of Health - (Continued) 29 Gloversville Jamaica Jamestown Kingston Mamaroneck Middletown Newburgh City Laboratory Jamaica Laboratories City Department of Health Laboratory. City Laboratory Cappus Laboratories City Department of Health... Pathological Laboratory, St. Municipal Private Municipal Municipal, doing county work. Private, doing municipal work. Municipal Hospital, Dr. Woodward Shaw, director.. . Dr. Henry F. Parker, director.. . Dr. John J. Mahoney, director. . Miss Eleanor Easton, bacteriol- ogist. Dr. Harry Cappus, director Dr. H. J. Shelley, director Dr. Adaline M. Wescott, director Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, laboratory examination of milk and water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test), pneumococcus type differentiation, laboratory examination of milk and water. Laboratory examination of milk. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, bacteriological examination of milk and water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test and the direct examination for Treponema pallidum), laboratory ex- amination of milk and water. Diphtheria, tuberculosis, typhoid fever (agglutination test), gonorrhea. Diphtheria, tuberculosis, typhoid fever, gonorrhea, New Rochelle.... New York City... New York City... New York City... New York City... New York City... Luke's Hospital. von Wedel Laboratories (also Dobbs Ferry and White Plains). Laboratory of the Hospital for Ruptured and Crippled. St. Mark's Clinical and X-ray Laboratories. Horstman Laboratory (Ford- ham University, College of Pharmacy). Clinical Laboratory of Frederic E. Sondern. Sero Pathological Laboratory. Private, doing municipal work. Hospital Hospital Teaching Institu- tion. Private Private Dr. H. von Wedel, director Dr. Ferdinand M Jeffries, di- rector. Dr. Byron C. Darling, director.. Dr. Gustave Horstman, director. Dr. Frederic E. Sondern, director Dr. Albert M. Pasca, director... epidemic cerebrospinal meningitis, bacteriological ex- amination of milk and water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test), laboratory examination of milk and water. Diphtheria, tuberculosis, typhoid fever, gonorrhea, syphilis (complement fixation test and the direct examination for Treponema pallidum), bacteriological examination of milk and water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test), laboratory examination of milk and water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, direct examination for Treponema pallidum, pneumococcus type differentiation, laboratory examina- tion of milk and water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test and the direct examination for Treponema pallidum), laboratory ex- amination of milk and water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test and the direct examination for Treponema pallidum), laboratory examination of milk and chemical examination of water. * Director resigned. Reapproval under consideration. 30 Location Laboratory Classification Director or person in charge Approved for following examinations New York City... T. S. Winslow, Laboratory... . Private Dr. Thomas S. Winslow, director Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test and the direct examination for Treponema pallidum), pneumococcus type differentiation, bacteriological examination of milk and water. Niagara Falls City Department of Health. . . Municipal Dr. W. A. Scott, director Mrs. Leah Cleary, bacteriologist. Diphtheria, tuberculosis, typhoid fever (agglutination test), gonorrhea, epidemic cerebrospinal meningitis, syphilis (complement fixation test and the direct examination for Treponema pallidum), bacteriological examination of milk and water. Olean City of Olean Laboatory Municipal Dr. J. P. Garen, director Diphtheria, tuberculosis, gonorrhea, epidemic cerebro- spinal meningitis, and the laboratory examination of milk. Diphtheria, tuberculosis, typhoid and paratyphoid fever, gonorrhea, epidemic cerebrospinal meningitis laboratory examination of milk and water. Oneida Madison County Bacterio- logical Laboratory. County Dr. R. L. Crockett, director. . . . Peekskill Lent Clinical Laboratory Private Dr. Frank 8. Lent, director Diphtheria, tuberculosis, gonorrhea, bacteriological ex- amination of milk and water. Pomona Rockland County Tuberculosis Hospital Laboratory. County Dr. E. H. Restin, director Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, direct examination for Treponema pallidum, bacteriological examination of milk and water. * Poughkeepsie.... Laboratory of City Depart- ment of Health. Municipal Miss Evangeline Moore, bacteri- ologist. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, direct examination for Treponema pallidum, pneumococcus type differentiation, laboratory examina- tion of milk and water. Poughkeepsie Vassar Brothers Hospital Lab- oratory. Hospital Dr. A. L. Peckham, director. .. . Diphtheria, tuberculosis, typhoid fever (agglutination test) gonorrhea, epidemic cerebrospinal meningitis, laboratory examination of milk and bacteriological examination of water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test), pneumococcus type differentiation, bacteriological examination of milk and water. Poughkeepsie Laboratory of Hudson River State Hospital. Institution Dr. Howard P. Carpenter, di- rector. Poughkeepsie Laboratory of Dr. Sanderson.. Private Dr. Raymond Sanderson, director Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, direct examination for Treponema pallidum, pneumococcus type differentiation, laboratory examina- tion of milk and water. Rochester City Health Department Lab- oratory Municipal Dr. George W. Goler, director. . Prof. C. W. Dodge and Miss Isabel Griswold, bacteriologists Diphtheria, tuberculosis, typhoid fever (agglutination test), gonorrhea, epidemic cerebrospinal meningitis, direct examination for Treponema pallidum, pneumo- coccus type differentiation, laboratory examination of milk and water, Public Health Laboratories Approved by the State Commissioner of Health - (Continued) 31 Rochester Hahnemann Hospital Diag- Hospital Dr. R. Mellen, director Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test and the direct examination for Treponema pallidum), bacteriological examination of milk and water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test and the direct examination for Treponema pallidum), laboratory examination of milk and water. Diphtheria, tuberculosis, typhoid fever (agglutination test), gonorrhea, epidemic cerebrospinal meningitis, syphilis (complement fixation test), bacteriological examination of milk and water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test and the direct examination for Treponema pallidum). Diphtheria, bacteriological examination of milk and water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, direct examination for Treponema pallidum. Diphtheria, tuberculosis, typhoid and paratyphoid fever gonorrhea, epidemic cerebrospinal meningitis, syphilis (complement fixation test and the direct examination for Treponema pallidum), pneumococcus type differen- tiation, laboratory examination of milk, bacteriological examination of water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test), pneumococcus type differentiation, laboratory examination of milk and water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic ceiebrospinal menin- gitis, syphilis (complement fixation test and the direct examination for Treponema pallidum), pneumococcus type differentiation, laboratory examination of milk and water. Diphtheria, tuberculosis, typhoid fever (agglutination test), gonorrhea, epidemic cerebrospinal meningitis, syphilis (complement fixation test and the direct ex- amination for Treponema pallidum), pneumococcus type differentiation, bacteriological examination of water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test), chemical examination of water. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, direct examination for Treponema pallidum, bac- teriological examination of milk and water. Rochester nostic and Research Lab- oratory. Pathological Laboratory of Hospital Dr. Herbert R. Brown, director. Rochester Rochester Homeopathic Hos- pital. Private Laboratory of Dr. Boswell. Medical Laboratory of Dr. G. W. O'Grady. Rome City Laboratory Private Dr. Charles 0. Boswell Rochester........ Private Dr. George W. O'Grady, director Dr. W. Woglom, bacteriologist. . Municipal Saranac Lake.... Schenectady Sonyea Saranac Laboratory for the Study of Tuberculosis. Pathological Laboratory of the City and County. Craig Colony Laboratory. . . . Private, doing municipal work. Municipal and County. Institution Dr. Edward R. Baldwin, director Dr. Warren B. Stone, director.. . Dr. William T. Shanaha , M: d- Syracuse City Department of Health. . . City Laboratory Municipal cal Superintendent. Dr. Harold A. Patterson, Patho- logist. Dr. A. G. Gigger, director Municipal Dr. Harry W. Carey, director.. . Dr. S. A. Petr off, director.... Tuxedo Park Institution Trudeau and Clinical Laboratory. Tuxedo Laboratory Hospital, doing municipal work. Dr. Edward C. Rushrnorc, di- rector. * Director resigned. Reapprova lunder consideration. 32 Location Laboratory Classification Director or person in charge Approved for following examinations Utiea City Laboratory Municipal Miss Margaret Upton, bacteri- ologist. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test), pneumo- coccus type differentiation, bacteriological examina- tion of milk and water. Utica Clarke Memorial Laboratory.. Hospital Dr. Philip L. Turner, director... Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, direct examination for Treponema pallidum, laboratory examination of milk and water. Watertown Calkin & Farmer Laboratory. Private Charles M. Rice, pathologist,. . . Miss M. P. Anthony, bact ri- ologist. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- < gitis, syphilis (complement fixation test and the direct examination for Treponema pallidum), pneumococcus type differentiation, laboratory examination of milk and water. Watertown Isabel M. Meader, Laboratory Private Dr. Isabel M. Meader, director.. Diphtheria, tuberculosis, typhoid fever (agglutination test) gonorrhea, epidemic cerebrospinal meningitis, direct examination for Treponema pallidum. White Plains von Wedel Laboratories (also at Dobbs Ferry and New Rochelle). Private, doing municipal work. Dr. H. von Wedel, director Diphtheria, tuberculosis, typhoid and paratyphoid fever dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test), laboratory examination of milk and water. White Plains Bloomingdale Hospital Lab- oratory. Hospital Dr. Karl M. Bowman, director.. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, syphilis (complement fixation test), laboratory examination of milk and water. Y onkers Laboratory of the Department of Health. Municipal Dr. C. W. Buckmaster, health officer. Mr. T. A. Walsh, bacteriologist. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, direct examination for Treponema pallidum, laboratory examination of milk and bacteriological examination of water. Y onkers St. Joseph's Hospital, Clinical Laboratory. Hospital Dr. Gustave Horstman, director. Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, pneumococcus type differentiation, bacteriological examination of milk and w'ater. Yonkers Sloan Laboratory Private Clark A. Sloan, bacteriologist. . . Diphtheria, tuberculosis, typhoid and paratyphoid fever, dysentery, gonorrhea, epidemic cerebrospinal menin- gitis, laboratory examination of milk and water. Public Health Laboratories Approved by the State Commissioner of Health-(Concluded') ♦Bacteriologist resigns. PART II THE LABORATORY SERVICE OF NEW YORK STATE IN THE DIAGNOSIS, PREVENTION AND CURE OF DISEASE This section of the Manual describes very briefly what the laboratories of the State can do for physicians, health officials and citizens of the State in the diagnosis, prevention and cure of disease. This work, at present, is largely limited to the infectious diseases but there is no good reason why it should be so limited. The central laboratory at Albany aims to do any work the practical value of which is apparent. A brief statement of the scope and significance of laboratory service in the different diseases follows in alphabetical order. The essential clinical facts upon which is based the physician's diagnosis or request for a laboratory examination are of the utmost importance if the laboratory work is to be done intelli- gently and quickly. Often the character and extent of the examination and the necessity of confirmatory examination or repetition of the test are determined by these facts. Furthermore, much time is consumed in getting these facts if they are not sent with the specimens. If three or four minutes are required to write this essential information on the blanks, much more time is saved in the laboratory. For example, even in an examination seemingly so simple as that of sputum for the tubercle bacillus, the laboratory diagnostician might be required to devote a few minutes or an hour to his search or he might consired it necessary to get another specimen or inoculate a guinea pig. Once physicians appreciate the practical importance of giving the necessary clinical facts, the laboratories will not have any diffi- culty in securing their cooperation. Physicians should take special care to write their names and addresses legibly. All information concerning a specimen should be sent with the specimen and not by letter. Informatioa with specimens essential Cancer Upon the recognition of the malignant nature of tumors and new growths depends the possibility of eradicating diseases of this nature. Excepting small and superficial epitheliomata of the skin, which may be successfully treated by Roentgen rays or Prevention 33 34 thermocautery, if skilfully applied, there is no procedure by which cancer can be cured except that of complete removal. Com- plete removal can only be accomplished in the early stages of the disease. After a tumor has become malignant and spread beyond the reach of the knife there is not the slightest hope of effecting a cure or saving the life of a patient. The early diagnosis of malignant tumors can be made only under the microscope, and specimens of all such material should be submitted for examina- tion as early as the disease is suspected. These examinations are made by the New York State Institute for the Study of Malignant Diseases, at Buffalo, where specimens may be sent, put up in outfits obtained from the laboratory in Buffalo, or by making use of the miscellaneous outfit containing a sputum jar distributed by the State Department of Health. Directions for putting up such specimens are printed in a circular accompanying the infor- mation blank. A limited number of specimens have been examined at the laboratory in Albany. Laboratory specimens Although the appearance of the inflammatory processes in the throat is often suggestive of diphtheria, a bacterial diagnosis of the disease is necessary and is made by the examination under the microscope of cultures taken from the exudate in the throat. For this purpose an outfit containing a tube of culture medium and a swab with which to transfer the exudate to the surface of the culture medium, and an information blank on which to record clinical data concerning the case, is furnished. The bacterial examination of the inflammatory processes of the throat is extremely important because diphtheria in recent years, since the effective use of diphtheria antitoxin, has become often a mild disease in which all the characteristic clinical signs are absent. Furthermore, the presence of diphtheria bacilli in the secretions of healthy persons is now known to be not uncommon. The cultural examination of healthy persons is, therefore, neces- sary whenever cases of diphtheria are found, and especially is it necessary to take cultures from the throats of all 'healthy persons who in any way have come in contact with cases of diphtheria, not necessarily immediately after the exposure, but more particu- larly after a brief interval when it would be possible for the Diphtheria General considera- tion 35 diphtheria bacilli to develop and become established in the secre- tions, thus giving rise to the carrier state. Diagnosis In every case of illness which there is reason to suspect is diphtheria, cultures should be made and submitted immediately to a laboratory approved by the State Commissioner of Health (Sanitary Code, chap. II, regulation 10). It should be borne in mind that not infrequently in cases of true diphtheria, as shown by laboratory tests, membrane and other classical symptoms are absent. In such cases the clinical picture may suggest tonsilitis or ordinary sore throat, yet the organism present in the patient's nose or throat, if transferred to the nose or throat of a susceptible person, may give rise to typical diphtheria. In cases which are clinically diphtheria, it is advisable to give antitoxin immediately, without waiting for laboratory reports), since antitoxin becomes less effective with each day's delay in administration. At times it is possible to confirm a diagnosis of diphtheria by demonstrating the bacilli in a smear made at the time of taking material for culture. A negative finding upon such a specimen is not reliable, since the organisms are less numerous and usually less typical than in specimens prepared from cultures after incubation. A negative report upon a culture from a case which is clinically diphtheria should not invariably be regarded as requiring a change in diagnosis. The question of the use of antiseptics, the possi- bility of the organisms having been missed in swabbing, or of an uncontaminated side of the swab having been applied to the culture medium and the possibility of exposure to extreme heat in transit, should be taken into consideration. Vincent's angina may at times present a clinical picture resem- bling that of diphtheria, although sloughing ulcers are more apt to occur and the membrane is more likely to involve the pillars, soft palate and buccal mucous membrane. When Vincent's angina is suspected prepare a smear upon a slide (from miscel- laneous outfit) and submit at the time of sending culture, asking for examination for the organisms of Vincent's angina. Tn pre- paring the smear, either use the swab accompanying the culture «W»wwu Atypiwii cm*e J>& - sasCti 'cWtay *s9&- t®KS» K«aiJtaa- aSosa <«£ str.'Wtrs IrrteSjpne- tuTTon ««f negattve rvpctt VinceaS*® Ar«gS»a 36 outfit (after inoculating the culture medium), using sufficient force to carry the swab through the membrane to its base, or curette lightly with a small sharp curette. In sending cultures from cases of suspected laryngeal diphtheria it should be borne in mind that throat cultures may not contain the bacilli early in the disease, owing to the location of the membrane. Later the organisms may be present in the throat. The presence of a profuse blood-stained nasal discharge should always be regarded with suspicion, especially after exposure to diphtheritic infection, and nasal cultures should be submitted for examination. Cultures In laryngeal cases Nasal diphtheria Place the patient in a good light. Depress the tongue. Collect the material on the cotton swab from the exudate or membrane, avoiding the tongue and taking care not to touch any- thing except the throat of the patient or the surface of the exudate. Material for examination from apparently healthy persons should be taken from the tonsils. In taking material from the nasal passages, place the patient in a chair and, if possible, have an assistant stand behind the patient and hold the head steady. Pass cotton swab upward a half inch, then directly backward to pharynx. Withdraw the swab and pass it through the other nostril. All manipulations should be made gently in order to minimize discomfort to the patient and to avoid injury to the mucous membrane. Inoculate the culture medium by rubbing the entire surface lightly and thoroughly with the swab, rotating the swab to be sure that the sides of swab which bear the secretions come in contact with surface of medium. Do not break the surface of the medium or push the swab into it. Contaminated, liquefied or dried tubes should not be used. Return the swab to its tube, insert the plug, return both tubes and the information blank to the container. Send at once, by the most direct route, to the State Department of Health, Division of Laboratories and Research, New Scotland avenue, Albany, N. Y., or to the nearest laboratory approved by the Commissioner of Health. (See pages 27-32.) Directions for Making and Transmitting Cultures Cultures from the throat Cultures from the nose Inoculation o£ medium 37 With each culture outfit is au information blank which the health officer or other physician making the culture is required to fill out and return to the laboratory with the inoculated culture. All of the information asked for is needed either to comply with the laws, as a guide to laboratory workers or for statistical pur- poses. If complete information is at hand when a culture is being examined, it will at times mean a saving of time both to the laboratory worker and the physician. Health officers and physicians should be familiar with the appearance of culture medium which is in proper condition for use. The Loeffler medium (diphtheria outfit) should present a smooth, grayish white, and slightly moist surface. Culture tubes should never be used when the medium shows evidence of con- tamination or liquefaction or has dried and separated from the sides of the tube. Information required with cul- tures Condition of medium Form Used for Submitting Information to Accompany Cul- ture for Diphtheria Bacilli (Front) Diphtheria Number of culture, 1, 2, 3, 4, 5, 6, 7, 8, 9, etc Examination of Culture Results of previous examinations. Purpose of culture: For diagnosis For release To determine carrier. Clinical diagnosis made and antitoxin administered. Culture to confirm diagnosis Culture from throat Date of taking culture or nose. Time Name of patient Address Age. Sex. Occupation Color Clinical diagnosis Location of membrane Duration of disease How contracted .Date of onset Other information concerning specimen. 38 Torm Used for Submitting Information to Accompany Culture for Diphtheria Bacilli - Continued Name and address of physician Name and address of health officer whom was this specimen taken?. Physicians and health officers are requested to answer all questions on the blank up to this point. Laboratory number. Examined Received Result of examination. Examiner Efforts Upon Examinations of Cultures for Diphtheria Bacilli " IWSfrr.a,"' When, organisms presenting the morphological characteristics rof diphtheria bacilli are fou^d, a report by mail or telegraph is sent to the attending physician and the local health officer. If the culture is the first one and there is no evidence that antitoxin 'has been given, these reports are always sent by telegram, charges collect, unless otherwise directed on the information blank accom- jpanying the specimen. Form Used for Reporting Presence of Diphtheria Bacilli 'Laboratory number In the examination of the culture from throat. , 19 'Name Address 'Taken on For or by Dr. Diphtheria bacilli were found. (This report is based upon morphological examination alone.) If the person referred to above is a " carrier " with no history of illness or contact with a case of diphtheria a culture' may be submitted for virulence tests immediately. AUGUSTUS B. WADSWORTH , M. D. Director Dr. Health Officer nose 39 Form Used in Reporting Negative Finding in Examination of Culture for Diphtheria Bacilli , 19 Laboratory number In the examination of the culture from throat. nose. Name Address Taken on For or by Dr. Diagnosis No diphtheria bacilli were found. Release . Carrier In an extremely small number of cases of true diphtheria, the diphtheria bacilli may not be found in the first culture, whereas in later cultures they are found. In laryngeal diphtheria the pharynx may not have become involved but diphtheria bacilli may be found in a second culture. In all doubtful cases, confirmatory cultures should be forwarded at once. AUGUSTUS B. WADSWORTH, M. D. Director Dr. Health Officer It not infrequently happens that specimens submitted are in such condition that a satisfactory examination can not be made. The following form is one used for " unsatisfactory " reporta upon all laboratory specimens, but it is included here because such reports are so often necessary in connection with cultures for diphtheria bacilli. Realizing that a definite report is usually a matter of great importance to the health officer and attending physician, a culture is never reported as unsatisfactory until every reasonable effort has been made to examine it and determine the presence or absence of diphtheria bacilli. " UnMUatac- tory " Repo eta 40 Form Used for Reporting Upon Specimens Unsatisfactory for Examination (Front) Laboratory number , 19 In the examination of the specimen for diagnosis of. from patient: Name Address Taken on For or by Dr. Was unsatisfactory for the following reason: (See reverse side) Another specimen should be forwarded at once for confirmation. AUGUSTUS B. WADSWORTH, M. D. Director Dr. Health Officer A- Received in poor condition I Serum medium dried, liquefied or contaminated. II Tube broken. Not properly packed. Ill Blood hemolyzed. IV Specimen spoiled or too old, delayed in transit. V Insufficient material for test. Specimen leaked out in transit. VI Specimen probably frozen in transit. VII Culture contaminated. {Back} B - Not properly taken I Insufficient material sent. II Culture medium not thoroughly inoculated. Insufficient growth obtained. Ill Smear not properly made - too thick. IV Not completely dried. V Proper outfit for specimen was not used; specimen spoiled. C-Result of examination doubtful I Organisms atypical, or their presence of doubtful significance. II Reaction partial. Ill Nonspecific reaction obtained; specimen " anticomplementary." D - Examination not made I See explanatory letter. E - Examination unsatisfactory I See explanatory letter. 41 Not only is the receipt of an "unsatisfactory" report annoying to the physician waiting anxiously for definite information, but the receipt of a culture which is not in satisfactory condition for examination invariably means additional work for the laboratory staff. With these facts in mind, physicians about to prepare cultures should accept only culture medium which is in good con- dition and should familiarize themselves with the technique, as described in the circulars accompanying culture outfits. (See page 36.) A frequent source of annoyance is the contamination of medium with organisms which upon inoculation overgrow the culture and make a satisfactory examination impossible. Frequently the offender is a mouth organism which produces a slimy growth upon the culture medium. In a number of instances in which such an organism has appeared repeatedly in cultures from the same patient, irrigation of the nose and throat three or four times daily for several days with warm physiological saline solution has over- come the difficulty and made it possible to secure a satisfactory culture. Contaminated medium Use of the Schick Test After a diagnosis of diphtheria has been made in any case, and the patient isolated, it becomes necessary to ascertain what other persons have been exposed through contact with the patient and to determine whether or not it is advisable for such persons to be immunized. Histories of previous attacks of diphtheria are at times vague and unreliable and it is well known that an attack of this disease does not invariably confer immunity against a subsequent attack. The 'Schick test offers a means of determining whether an indi- vidual is immune or susceptible to diphtheritic infection. It is especially useful in institutions and special groups of individuals who are under close observation and control. The following experience is cited as illustrating the kind of situation in which the Schick test is particularly useful: In 1917 sixteen cases of diphtheria occurred among members of a student army training corps of approximately five hundred men. While these men were living in private houses and board- ing houses in a large city, they were under military control. All A means of determining susceptibility 42 of the men who did not have diphtheria were examined by the Schick test and bv taking throat cultures. Those found to be carrying diphtheria bacilli were isolated and all giving positive Schick reactions immunized with antitoxin. A few giving both positive Schick reactions and positive cultures were given therapeutic doses of antitoxin. Those with negative Schick reac- tions and positive cultures were regarded as carriers. The following is part of the text of a special circular issued by the Division of Laboratories and Research: The Schick Reaction In 1913 Schick described the mild local skin reaction invariably induced in guinea pigs by the intracutaneous injection of very small amounts of diphtheria toxin. He stated that the same reaction could be obtained in persons who were susceptible to diphtheria but that it did not occur in persons who were not susceptible to the disease. Since that time, the Schick test has been used quite extensively for the purpose of ascertaining the presence or absence of sufficient diphtheria antitoxin in the blood and tissues of individuals to give active immunity against infection. It has been found that very small quanti- ties of antitoxin in the blood - probably not more than 1/30 unit - will adequately protect and thus make unnecessary the conferring of passive immunity through injection of diphtheria antitoxin. By the use of the Schick test, therefore, the unnecessary administration of antitoxin with its attendant serum reaction can be avoided in a number of instances. Furthermore, it also avoids sensitizing those persons unnecessarily against future treatment with horse serum and antitoxin. In the studies of Dr. W. H. Park approximately 15 per cent of infants under 4 months are shown to be susceptible to diph- theria; this immunity, however, rapidly disappears until between 1 and 2 years 75 per cent of children are susceptible. Between the ages of 10 and 20 years 25 per cent are susceptible and about 20 per cent over 20 years. It appears that children in the same family frequently give the same reaction: thus if a young child is immune, that is, gives a negative reaction, the older children will also be found to possess immunity to diphtheria. Simi- larly, when an older child is susceptible, that is, gives a positive reaction, the younger children are also found to 'be susceptible. The Schick test has been used extensively by certain workers for four or five years. The results, when the tests have been properly given, indicate that very few, if any, variations in the natural immunity occur; a person giving a nega- tive Schick reaction will apparently possess this immunity indefinitely. Occasional mild cases of tonsilar diphtheria have been reported after a nega- tive Schick reaction. The Schick test may be of practical value in the diag- nosis of diphtheria. The Schick test depends on the local reaction or redness caused by the intra- cutaneous injection of extremely small amounts of diphtheria toxin when antitoxin is not present in sufficient quantity to neutralize the toxin. While 43 the technique of the Schick test is in itself not difficult, experience has show® that for satisfactory and uniform results it is essential that the procedure be carried out with great accuracy and exactly as given in the directions, and that for an accurate reading of the reactions considerable experience is required. Physicians shorild bear in mind that the concentrated toxin sup- plied with the outfits is an extremely powerful poison and unless properly diluted may, when injected, cause slight necrosis and prolonged discomfortr and an overdose - death. Directions for the Use of the Outfit The special outfit prepared by the laboratory consists of two glass tubes each containing a standardized capillary pipette, a bottle containing 1 ce. of undiluted toxin, a bottle of sterile physiological salt solution and a small sterile test tube. An extra pipette is included so that the outfit may again be used if the bottle is rinsed under sterile conditions and refilled with sterile salt solutions, or cold boiled water to the graduation mark on the bottle. Rinsing may be done with sterile salt solution, sterile water, or better, by boiling the bottle and' stopper in water, after which it should be immediately restoppered. Precautions.- Do not use the outfit without first reading carefully the directions which should be followed exactly. Always make sure that the num- ber of the pipette given on the bottle of salt solution and the number on the- capillary pipette correspond. Keep the outfit in an ice box- the toxiffi- deteriorates rapidly in the light and unless kept at a low temperature. Do not. use a pipette the tip of which has been nicked or broken, as any change in the- tip of the pipette will alter the size of the drop. Always make a control test* with heated toxin on children over five years old and on adults. Never use the diluted toxin when it is over twenty-four hours old. Dilution.- Under sterile precautions remove the capillary pipette from its- container and by slight suction, draw up from the bottle of undiluted toxism enough toxin to half fill the pipette. Put exactly one drop of the toxin int® . the bottle containing the diluent as follows: holding the pipette with the • thumb and second finger, vertically, press gently on the top of the pipette with the first finger until a drop begins to form. At once remove the finger* and allow the drop, which should be discarded, to fall unaided. Discard th®' first drop, repeat the procedure and allow the second or third to fall into the bottle which contains the exact quantity of sterile salt solution necessary to make the proper final dilution. Cork the bottle and mix the contents thoroughly. (When many tests are to be made, on request, additional bottles of diluent are supplied, so that several bottles may be prepared with the same pipette at one time). Each 0.1 cc. of the dilution contains 1/50 of a minimal fatal dose of toxin - 1/50 of that quantity of toxin which will kill & 250 grm. guinea pig in about 4 days. The dilution is not reliable afteir twenty-four hours. Test Dose.- Use, preferably, a 1 cc. " Record " tuberculin syringe with a fine, platinum-iridium or steel needle (gauge 26, % in.). An ordinary hypo- dermic syringe, unless graduated in 0.1 cc. is not satisfactory. Inject exactly 0.1 cc. of the toxin dilution intracutaneously on the flexor surface of the left 44 forearm or arm after cleansing with soap and water and then with alcohol. The insertion of the needle should be such that its opening is visible through the skin. The injection of the toxin should form a wheal-like, whitish, raised area. Control.- Transfer 2 or 3 cc. of the diluted toxin to the small sterile test tube by means of a sterile pipette, allowing no toxin to touch the upper part of the tube. Plug and immerse in boiling water for three minutes. Inject similarly on right forearm using the same dose and dilution as for the test. Thoroughly rinse and boil the syringe between the test and control injections or use a second syringe for the control tests. Readings should be made at the end of 24, 48, 72 and 96 hours. When a control injection has been made, the areas on both forearms should be care- fully compared. It is desirable to block out a card in squares in which the intensity and extent of the reactions are roughly sketched each day for com- parison for four days. Positive Reactions.- Usually toward the end of the first day a gradual red- dening appears, which becomes distinct in 24-48 hours. The maximum reaction occurs on the third or fourth day - the slight infiltration and redness cover- ing a circumscribed area of 1-2% cm. in diameter. The redness persists for some time, then gradually fades. The characteristic brownish pigmentation or bronzing remains for several weeks. Pseudo Reaction, Combined Reactions.- In older children and especially in adults, hypersusceptibility to the protein contained in the inoculum may not infrequently cause confusion and a misleading interpretation of the reactions unless carefully controlled and read in the light of considerable experience. Hence, the importance of the control inoculation with material in which the toxin has been rendered inert and the advisability of assuming susceptibility to diphtheria or repeating the tests immediately, if any doubt exists in regard to the reaction. The pseudo reaction differs from the true toxin reaction in that it occurs more promptly -■ urticarial-like reddening appearing within a few hours - it reaches its height in 36-48 hours and it subsides within 3 or 4 days. It usually shows a darker central core with a broad outer border which gradually merges into the surrounding tissue, or there may be a more uniform reddening considerably larger in diameter than the true toxin reaction. When the pseudo and the true toxin reaction are combined, the central core is usually larger and noticeably darker in hue than in the control in which the thermolabile substance of the toxin has been destroyed. The pseudo reaction rapidly disappears leaving the characteristic scaling and later pig- mentation of the true reaction. Persons showing no reaction may be considered immune to diphtheria pro- vided the test has been properly carried out. This, however, does not prevent their becoming carriers of virulent diphtheria bacilli. It is safest to consider all persons developing a very faint Schick reaction susceptible to diphtheria. Interpretation of Reactions 45 Immunity against diphtheria may be obtained by the injection of diphtheria antitoxin or it may be induced by the injection of toxin-antitoxin mixture. The so-called " passive " immunity due to the circulation in the blood of diphtheria antitoxin (after injection of doses of approx- imately 1,000 units) is temporary, usually lasting from two to three weeks, but its effect is almost immediate. If an exposed and immunized person is promptly removed from contact with the infective case or carrier, the passive immunity continues sufficiently long to cover the period of incubation and, as a rule, affords adequate protection. Immunization with diphtheria anti- toxin is the method of choice in the presence of outbreaks or where exposures have presumably taken place and immediate protection is desired. An active and much more lasting immunity may be induced by means of the injection of toxin-antitoxin mixture. The following is, in part, the text of a special circular on this subject: The practical value of neutral or balanced mixtures of toxin and antitoxin for active immunization against diphtheria was first demonstrated by Dr. Theo- bald Smith in 1907 and 1909. Practical application of this principle has since been made on large groups of individuals. Persons who - as shown by the Schick test - lack specific immunity to diphtheria, may thus be immunized against the disease if treated with very small amounts of a properly balanced, mixture of diphtheria toxin and antitoxin. The material is prepared by add- ing to a ripened and accurately standardized diphtheria toxin just enough carefully standardized antitoxin to incite in the guinea pig slight local reactions and more marked but delayed affections of the nerves, indicating that complete neutralization has not taken place. Active immunization with diphtheria toxin-antitoxin mixture has proved especially valuable in institutions for young children and in schools where diphtheria is frequently present and difficult to eradicate. As most children between three months and two years are susceptible to diphtheria, it may, under special conditions, even be desirable without previous use of the Schick test, to treat all children between those ages, the local reaction caused by the injections being practically negligible in such young children. Where persons may be constantly exposed to diphtheria-as nurses and others in hospitals - active immunization of those individuals whom the Schick reaction has shown to be susceptible, is also of particular value. Treatment with toxin-antitoxin mixture has been introduced too recently for it to be possible as yet to know how long the immunity will last. There seems to be little doubt, however, that an active immunity persists for at least three years and probably for a considerably longer period, if not permanently. Immunization Passive immunity 46 While the immunity conferred by active immunization is thus much more lasting than that obtained by passive immunization with diphtheria antitoxin, St is also much slower in developing - taking from 2 to 12 weeks. Injections diphtheria antitoxin - which give protection for 2' or 3 weeks - must, therefore, always be used where exposure has occurred and immediate protec- tion is necessary. In many outbreaks of diphtheria in schools and institu- tions the passive immunity thus conferred will last long enough to tide over the emergency. Directions for the Use of Toxin-antitoxin Mixture The mixture is distributed on special order in bottles containing 5, 10, and 20 cc. The date of preparation and of return is marked on each bottle. It as essential that the material be kept in the dark and in an icebox at an even Jew temperature. In outdated material and in material which has not been kept under proper conditions the required balance between the toxin and anti- toxin may be destroyed, and the efficacy of the mixture as an immunizing -.agent lost. The injection is made subcutaneously, usually on the left arm at the inser- ition of the deltoid. The site of injection should first be cleansed with soap .-and water, then with alcohol or tincture of iodine. Children under one year -should receive 0.5 cc. of the undiluted mixture; older children and adults 1 cc. Three injections are given at seven-day intervals, the same dosage being aised each time. Moderate swelling and soreness may develop at the site of injection in older children and adults; in very young children reactions seldom occur. After three months, the degree of active immunity which has been acquired should be tested for by repeating the Schick test. Dr. W. H. Park has esti- mated that approximately 90 per cent of persons will be found to give a .'negative Schick reaction- that is, to have developed an active immunity -■sufficient to protect against the disease. A second series of three injections will be - with rare exceptions - sufficient to produce an active immunity in ..the remaining persons. The use of antitoxin in the treatment of diphtheria has so reduced the number and the fatality of the cases and so attenuated the severity of the disease in recent years that death from diph- theria is invariably due to delayed or faulty treatment with .-antitoxin.* Treatment The following is quoted from the special circular on the use of 'diphtheria antitoxin issued by the Division of Laboratories and Research: Early use of antitonin is essential. An ample initial dose is more effective than .repeated small doses and is often sufficient, but when the initial dose is Inadequate, or its effect has disappeared and the disease persists, the dose •should be repeated, possibly increased. Immediate curative action is secured * Fatal complications such as pneumonia occasionally develop in diphtheria, 'feut death in these cases is not directly due to the diphtheria toxin. 47 by intravenous inoculation which is three to four times as effective as sub- cutaneous inoculation, but only physicians experienced in intravenous serum administration should practice it. Initial Dosage in Diphtheria Child under 15 years: Mild to moderate, 3,000-6,000 units, subcutaneous or intramuscular; severe to malignant, 6,000-18,000 units, intramuscular or intravenous. Adult: Mild to moderate, 3,000-9,000 units, subcutaneous or intramuscular; severe to malignant, 12,000-24,000 units or more, intramuscular or intra- venous. Physicians should bear in mind that since toxin which has become united to the cell substance is untouched by antitoxin, an early and liberal single injection is always preferable to smaller divided doses; which only delay the effect of the antitoxin on the free toxin in the system. Where sufficient toxin has combined with the body tissues to cause death no amount of antitoxin will bring about recovery, hence the importance of early treatment. A d ministration The antitoxin should be given by hypodermic injections made deeply into any suitable muscle from which absorption takes place rapidly. Injections may also be made subcutaneously. The skin over the selected area should be thoroughly cleaned with soap and water, and then washed with alcohol, or some disinfecting solution such as tincture of iodine. The physician's syringe should be boiled for at least five minutes and the antitoxin drawn up carefully and immediately injected to avoid possibilities of contamination. In severe cases, as in the emergencies of laryngeal diphtheria, if the physician is fully qualified to give an intravenous injection, this is advised as a primary dose. In order to safeguard against anaphylaxis by desensitizing the patient, 0.2 cc. of the dose should be allowed to circulate a few moments before the remainder of the dose is given and this should be injected very slowly. Whenever subcutaneous or intramuscular injections have preceded the intravenous injection by an hour or two this will suffice to desensitize. Physicians are cautioned to be on the alert for any symptoms suggesting an anaphylactic reaction and especially if the patient at any time has been treated with horse serum or is subject to asthma. Report Required from Physicians Using State Diphtheria Antitoxin Patient (Front) Address .N. Y. Treated at (Insert "home" or name of institution) . . Date of Earliest Symptoms Age. Sex. Bacterial Diagnosis Clinical Diagnosis Membrane Present ? To be returned to health officer or Division of Laboratories and Research, New Scotland Ave., Albany. Nares ? Pharynx?. .Tonsils? Larynx? (OVER) 48 Date and Hours of Injections Units Injected Antitoxin Number Effect Complications and „ Produced Serum Rashes Operations (Back) Termination of Case (Recovery or Death): Date of Termination: M. D. Address. Release of Cases and Carriers Cases Regulation 36, Chapter II, Sanitary Code, provides that the minimum period of isolation in cases of diphtheria (including membranous croup) shall be until two successive negative cultures have been obtained from the nose and throat at intervals of not less than twenty-four hours, the first of such cultures being taken not less than nine days from the day of the onset of the disease. Under the rules and regulations for control of diphtheria car- riers (regulation 7) earners may be released when two successive negative cultures, taken at intervals of not less than twenty-four hours, have been obtained, or (regulation 6) when a virulent test upon a culture from the carrier has shown the organisms not to be virulent for guinea pigs. According to laboratory records, approximately 95 per cent of cultures from recovered cases and contact carriers tested for viru- lence up to three months from the date of onset have shown virulence. In making cultures from large groups of individuals who have not been in contact with cases, as in schools or institutions, where there is no diphtheria, organisms may be found in about 1 or 2 Carriers Virulence tests Noncontact carriers 49 per cent of all persons which closely resemble diphtheria bacilli, but which are not virulent for guinea pigs. They can be dis- tinguished from true diphtheria bacilli only by means of virulence tests upon these animals. In view of these facts, the laboratory will make virulence tests upon cultures from recovered cases (convalescent carriers) and contact carriers, under ordinary circumstances, only after three months from the date of onset (in cases) or discovery (carriers). This rule is necessary owing to the amount of time consumed in making virulence tests and the scarcity of laboratory animals. In special instances virulence tests are made before the three months' period has elapsed. When the health officer finds it necessary to have a virulence test made of a carrier, he should send a culture with his request for the virulence test on the infor- mation blank stating clearly whether or not the carrier is in his opinion a contact or a noncontact carrier or a convalescent carrier, together with reasons for making the request as indicated on the blank for this purpose. From noncontact carriers cultures may be submitted for viru- lence tests immediately. Convalescent and contact carriers Noncontact carriers Information Required of Physicians Requesting Virulence Tests Name of patient Record of Source of Culture for Virulence Test Age. Did patient have a clinical case of diphtheria? Is patient a contact carrier? Date of onset. A noncontact carrier ? Location of membrane. Was antitoxin administered?. General condition of throat and nose Condition of tonsils. Have any cases of diphtheria or carriers been traced to contact with this patient? Number of throat cultures reported positive. Number of throat cultures reported negative. Result of Schick test if it has been performed. Signature of attending physician. Date. Dysentery, Bacillary Bacillary dysentery is a disease incited by the dysentery bacillus Or8anisna and which not infrequently occurs in endemic and epidemic form 50 in New York State. There are several types of dysentery bacilli and different types have been recognized in different outbreaks. These organisms are closely related to each other but vary greatly as to toxicity. During and following outbreaks, carriers are often discovered. They are occasionally discovered in the course of routine examinations of fecal specimens. Active immunity may be induced through the administration of dysentery vaccine. For therapeutic purposes the Department prepares and distributes a polyvalent serum. The following is quoted from a circular issued by the Division of Laboratories and Research: The State Department of Health, through the Division of Laboratories and Research, distributes to health officers and physicians qualified to administer it, polyvalent antidysentery serum obtained from horses immunized against organisms of the dysentery group. Carriers Distribution of serum Collection of specimens Directions for the Collection of Specimens for Diagnosis The methods of diagnosing dysentery and typhoid fever are similar. The clinical signs of diarrhea with blood and mucus in the stools require for an accurate bacterial diagnosis confirmation by a laboratory test of the blood and a bacterial examination of the feces, such as are necessary in typhoid fever. The agglutination or Widal test, however, in dysentery is not so reliable or so definitely standardized as it is in typhoid fever. Hence, the importance of examination of the feces in all cases of suspected dysentery. The outfits for specimens from typhoid fever cases should be used, but on the typhoid fever information blanks it must be clearly stated that a diag- nosis of dysentery is requested. Also state whether serum is desired. In severe cases where the immediate use of serum is desirable, its thera- peutic use may be commenced without waiting for the laboratory diagnosis. Directions for the Use of Antidysentery Serum It is advisable to give the serum early in the course of the disease and to continue its use if the signs of toxemia persist. A preliminary subcutaneous injection of 0.5 cc. serum should invariably be given at least 30 minutes before the initial therapeutic dose of 20 cc. to avoid anaphylactic shock. Special caution should be observed when the patient gives a history of being subject to asthma or hay fever. The desensi- tizing dose should always be repeated in the same manner if an interval of six or more days should elapse between injections. The skin over the selected region should be thoroughly cleansed with soap and water, and then washed with alcohol, or some disinfecting solution, such as tincture of iodine. Inocu- lation should be made subcutaneously, except in the emergency of the most acute toxemia, when in fully qualified hands the inoculation may be made intravenously. The serum when used intravenously should always be diluted at least one-half with warm fresh sterile physiological salt solution and care Administra- tion of serum 51 should be taken that the mixture is at body temperature when injected. The administration of the serum must be under absolutely sterile conditions. Subsequent injections of serum -■ whether subcutaneous or intravenous - may be made from 12 to 24 hours apart, depending on the severity of the disease. Dysentery Vaccine A polyvalent dysentery vaccine can also be obtained on special request.* Dosage: Two subcutaneous injections of 1 cc. each are usually given, one every seventh day. For children, one-half of the above dosage should be given. Serum neutralizes free poison in the tissues, protecting them from injury so long as it is present; this is passive immunization. Vaccine acts on the tissues, stimulating them to an active immunity. The dysentery vaccines, therefore, should only be used for preventive inoculation or for the treatment of certain selected obstinate subacute or chronic cases. Active ImmuuixatiM Such a large number of disease reactions simulate the onset of malaria that an examination of the blood to determine the pres- ence of the malarial parasite or protozoon may be necessary. It is only since the discovery of the malarial parasite that it has been possible to distinguish true cases of malaria from other conditions which physicians from time immemorial have been accustomed to consider malaria. It is important to make the examination dur- ing the period of the exacerbation of the disease and not rely upon the results of examinations of specimens during intervals. The specimens may be sent in the miscellaneous outfit which consists of a small box containing two slides. Upon these slides a thin film of the blood may be spread according to the following directions: Malaria Examination of blood specimens Preparation of specimens Cleanse lobe of ear and prick it with a sterile needle. Collect a fraction of a drop of blood on one end of a slide. Place the second slide at an angle to the first slide in the small drop of blood, spread the blood in a thin film on the slide by a continuous sweep of the second slide across the first. Let the blood dry in the air without heating it. Spread another film of blood on the second slide, using the end of the first as a spreader. Replace the slides when dry, specimen sides together, and mail them to the laboratory. The film of blood should be thin, evenly spread, and extend over only half the surface of the slide. If the drop is too large, clean the slide and collect another smaller drop. * Prepared only during summer months. 52 Meningitis Meningitis may be incited by a number of organisms and may occur as a primary and independent condition, or as a complica- tion or sequela of some other disease or condition. Epidemic cerebrospinal meningitis, which is of greatest importance from the standpoint of public health administration, is a specific disease, incited by the meningococcus. When meningitis occurs as a primary condition and in acute form, it is often difficult or impossible to make a positive diag- nosis without a laboratory examination of spinal fluid. The with- drawal of spinal fluid will, in itself, give temporary relief in many cases; in epidemic meningitis success of treatment depends upon early administration of serum; therefore, lumbar puncture should not be neglected or delayed. The following, with reference to serum treatment of epidemic cerebrospinal meningitis and to distribution of serum, is adapted from a circular prepared by the Division of Laboratories and Research: Antimeningococcus serum is distributed by the laboratory at Albany to main depots for laboratory supplies, lists of which will be published from time to time. A small stock of the serum will be kept in these depots for sanitary supervisors, health officers and physicians who are prepared to administer it. While this serum is of practical value only in cases of meningococcus meningitis it may not be harmful when the disease is caused by other organ- isms. Thus, if the exudate is cloudy, indicating an infectious process, the serum should be given without delay. As soon as a positive bacteriological diagnosis has been received a telegram asking for a fresh supply of antimeningococcus serum should be sent to the laboratory, New Scotland Avenue, Albany. The stock supply in the main depots should be used for the first injections or until the fresh supply from the laboratory is received. Examination of spinal fluid Serum treatment Procedure Spinal puncture Lumbar Puncture The serum is given subdurally; the subcutaneous introduction of it is of no value. Lumbar puncture is performed under strictly aseptic precautions in the third or fourth lumbar space without general anesthesia which should never be used. A local anesthetic may be advisable. Place the patient on the side with the back arched so that the spines of the vertebrae are separated. Select the notch nearest the line connecting the crests of the ilia. Introduce the needle in the midline and push it forward and a little upward. The needle should be introduced carefully, a distance of from one-half to three inches, depending upon the muscular development and age of the patient. When the 53 needle enters the canal the cerebrospinal fluid will flow out until the pressure is so reduced that only three or four drops fall in a minute. If the fluid is cloudy, the serum can be injected immediately without waiting for the bac- terial diagnosis. But, if later it is found on bacterial examination to be due to other organisms, the serum treatment should be discontinued. Serum Injection The serum is warmed to body temperature and injected very slowly under the least possible pressure. A syringe may be used but a funnel with the tube arranged to allow the serum to run in by gravity is much the better method. The barrel of an ordinary syringe may be used as a funnel. The rubber tubing should be one-eighth to one-fourth inch in diameter and long enough so that the funnel may be raised twelve to fifteen inches. In adults, twenty to forty cubic centimeters may be introduced; in children, three to twenty cubic centimeters. The amount of serum which is introduced should be determined by the quantity of cerebrospinal fluid withdrawn and by the age of the patient. The dose should be five, ten or more cubic centimeters less than the cerebrospinal fluid withdrawn. When the serum apparently runs in freely after a dry tap, it is wise to proceed slowly and also to watch the patient carefully for the slightest change in pulse and respiration. When thick exudates will not flow through the needle gentle suction with a syringe may be tried. Occasionally the injection of a little serum will start the flow of such exudates. In very severe cases it is best to inject the serum every twelve hours until there is improvement. In moderate and mild cases it should be repeated each day for the first four days. Further administration depends upon the patient's general condition and the bacterial examination of the fluid. In prolonged subacute or chronic cases the administration must be continued. Alarming reactions occur only exceptionally after the injection of the serum. The respiration may cease or the pulse may become very rapid. These reac- tions to the introduction of the serum are not necessarily serious, but are best treated by the withdrawal of some of the serum if the needle is still in place. If the needle has been withdrawn, or, if after some of the serum has been removed the symptoms do not ameliorate, artificial respiration should be resorted to for the respiratory condition, and adrenalin or other stimulants administered hypodermically for the heart. Hospitals, and those having avail- able blood pressure apparatus, will find it of service in administering the serum. The following references will be of interest to physicians undertaking the treatment of meningococcus meningitis; Sophian, A., Jour. Am. Med. Assn., 1912, 58, 843-845; Flexner, S., Jour. Exper. Med., 1913, 17, 553-576; Flexner, S., Jour. Am. Med. Assn., 1917, 69, 639-644; 721-724; 817-821. Technique of adminis- tratioa Reactions Report Required from Physicians Using State Antimeningo- coccus Serum (Front) Name of Patient. Report on the Use of Antimeningococcus Serum Address Treated at 54 Occupation Clinical Diagnosis Age. Sex. Color Bacteriological Diagnosis Date of Onset How Contracted Duration Recovery Death Symptoms Remarks: Return to Health Officer or to Division of Laboratories, New Scotland Avenue, Albany, N. Y. (over) Injections (1st, 2nd, 3rd) Date and Hour Amount Method of Injection Serum No. RESULTS (Back) Complications and Serum Rashes. Remarks: Date . Signed. Address Differential <lag>oaii In cases of tuberculous meningitis it is as a rule possible to demonstrate the presence of tubercle bacilli in the spinal fluid. In an obscure case showing meningeal symptoms, in which there is a possibility of syphilitic infection, a complement fixation test upon blood and spinal fluid and a cytological examination of a specimen of spinal fluid, may give information of value. 55 Miscellaneous Examinations Aside from the procedures referred to under other heads, the State laboratory endeavors, in so far as possible, to meet the demands of physicians for special examinations, when these are related to public health problems. The diagnostic service, except in special instances, is necessarily limited to' procedures commonly resorted to in public health laboratories. Information form and directions for securing specimens of blood and body discharges, and of body tissues for section cutting, follow: Form for Submitting Information Accompanying Miscel- laneous Specimens for Examination (Front) MISCELLANEOUS EXAMINATION See accompanying circular " Directions for collecting miscellaneous specimens." Number of specimens, 1, 2, 3, 4, 5, 6, 7, 8, 9, etc Results of previous examinations Purpose of examination. Material Time Date of collection Name of patient Age Address Occupation Sex Color Clinical diagnosis Lesion, location, extent. Duration of disease How contracted Symptoms Date T P R Treatment Other information concerning specimen. Name and address of physician Name and address of health officer whom was this specimen taken?. Physicians and health officers are requested to answer all questions on the blank up to this point and return it with the specimen. Laboratory number Examined, Received Result of examination. Examiner 56 Directions for Collecting Miscellaneous Specimens Collection of sputum for differentiation of pneumococcus types Local laboratory centers for type differentiation have been established in certain localities throughout the State. It is expected that additional centers will be organized as the laboratory facilities are increased. Select outfit with pink label containing sterile sputum jar.* Sputum coughed up from the deeper air passages and not saliva should be sent. If possible there should be at least 5 cc. of the sputum. When sputum can not be obtained, as so frequently happens with children, use a miscellaneous outfit with sterile tube and swab to collect as much secretion as possible from the pharynx. This may be facilitated by inducing the patient to cough, and swabbing just as the secretion is forced forward. The examination blank should be filled out carefully. The time of onset, location and extent of lesion, morning and evening temperatures and pulse rate should be given. If specimen is sent by messenger state on the blank whether antipneumococcus serum is desired; if by mail a letter should be sent at the same time giving this information. The specimen should be sent to the laboratory without delay. Reports will be sent by telephone or by telegraph if the diagnosis is Type I. When the diagnosis of Type I has been made, homologous serum should be given as soon as possible. Prompt diagnosis and early administration of serum is essential. Collection of specimens for other bacterial examinations Select outfit with pink label containing sterile tube and swab. The tube and the swab have been carefully sterilized. Remove the swab taking care not to touch anything with it. Collect on the swab enough of the discharge or exudate to be examined so that it will not dry in transit. Replace the swab in the tube, tak- ing all precautions against contamination. Enclose the information blank and forward by mail to the laboratory. * Sputum outfit bearing yellow labels should never be used for these speci- mens (see page 63). 57 Preparation of smears for microscopic examination Collect a fraction of a drop of blood or discharge to be ex- amined on one end of a slide. Place the second slide at an angle to the first slide in the small drop, spread it in a thin film on the slide by a continuous sweep of the second slide across the first. Let the film dry in the air without heating it. Spread another film on the second slide using the end of the first as a spreader. The film of exudate should be thin, evenly spread, and extend over only half the surface of the slide. If the drop is too large, clean the slide and collect another smaller drop. Replace the slides when dry, specimen sides together, and mail them to the laboratory with the information blank. Preparation of material for section cutting Select outfit with pink label containing sterile sputum jar. Place bits of tissue or organs in 70 per cent alcohol or in 10 per cent formalin (strong formalin 1 part diluted with water 9 parts) in the sputum jar and cork tightly. To allow the har- dening fluid to penetrate, cut the large specimens with a sharp knife. The cuts should be parallel, half an inch apart, and deep but not so deep as to sever the slices. Use a volume of alcohol or formalin at least four times the bulk of the specimen. Slice tumors as above directed. Send all the material together with any lymphatic glands, removed at the operation. When the tumor is too large to send, cut a slice extending from the center through the periphery. Forward, the information with the specimen. The diagnostic facilities of the laboratory are designed primarily to render prompt assistance to health officers and physicians in the diagnosis and control of communicable diseases, and to provide laboratory service for all persons in the State for whom such service is not otherwise available. Physicians are especially urged to make use of the facilities of approved county, municipal and private laboratories when- ever such facilities are available in their vicinity. 58 Form Used for Reporting Upon Examination of Miscel- laneous Specimens Laboratory number , 19 Name Address Taken on For or by Dr. The following report is submitted. AUGUSTUS B. WADSWORTH, M.D. Director In the examination of. .from Ophthalmia Neonatorum The immediate application of silver preparations to the eyes of newborn infants for the prevention of ophthalmia neonatorum is a practice so universally established as to require little dis- cussion. The procedure should be followed as a routine without regard to the question of the probability of gonorrheal infection in the parent. The Division of Laboratories and Research distributes 1 per cent silver nitrate solution to health officers in individual wax ampules and also in a 15 cc. combined dropper and container. The latter can be used repeatedly and, it is believed, will offer a most convenient method for the use of the solution. Type of containers The laboratory prepares a vaccine which may be used either for prevention or treatment of whooping cough. While its value has not yet been definitely established, many observers have reported satisfactory results following its use, both in treatment of cases and as a preventive measure. Few reactions of clinical significance have been reported and its continued use would seem to be warranted. Only fresh vaccine should be used and for this reason it is not kept in stock by local supply stations, but is sent directly from the laboratory upon request. It should be borne in mind that success is most likely to follow its use as a preventive in any instance when the necessary number of immunizing doses have been given prior to exposure to infection. Pertussis (Whooping Cough) Use of vaccine 59 The vaccine is injected with sterile hypodermic syringe, not too deeply into the subcutaneous tissue. The site of inoculation should be cleaned with soap and water and disinfected with alcohol, or by the application of tincture of iodine. Prophylactic Use Three injections are usually given, one every third day. For children and adults: 1,000 million, 2,000 million and 3,000 million bacilli. Therapeutic Use Depending upon the clinical symptoms, at least four or five injections are given, one every second or third day. For children under one year: 500 million, 1,000 million, 1,500 million, 2,000 million bacilli. For children over one year and adults: 500 million, 1,000 million, 2,000 million, 3,000 million, 4,000 million bacilli. Pertussis vaccine is put up in outfits containing three doses for the immunization of one person, and in bottles containing ten cubic centimeters. The bottle should always be carefully shaken to mate sure that when doses are divided the sediment is suspended in the solution. In each cubic centimeter are 2,000 million dead bacilli. The doses therefore are as follows: Technique Dosage 500 million cc- 1,000 million % cc. 1,500 million % cc. 2,000 million 1 cc. 3,000 million 1^ cc. 4,000 million 2 cc. Pneumonia Pneumonia is an acute exudative inflammation of the lung. Bronchopneumonia is a patchy involvement of the lung tissue about the bronchi and bronchioles, and more frequently develops as a secondary infection following other diseases. Although there is no fundamental difference, lobar pneumonia more fre- quently is a primary infection with more diffuse and extensive involvement. It is practically always in man a pneumococcus infection. Bronchopneumonia may be incited by many different species of pathogenic bacteria but chiefly by the pneumococcus or streptococcus. When effective methods of serum and vaccine therapy are developed pneumonia will be classified as pneumococ- Inciting agent 60 cus pneumonia, streptococcus pneumonia and so on, according to the incitant. The earliest studies of pneumococcus infection and immunity follow the work of Roux, Yersin and von Behring on diphtheria antitoxin. Attempts to obtain an effective serum or antitoxin were not successful until Neufeld distinguished differences in the types of pneumococci and 'Cole, Dochez and Avery, at the Rockefeller Hospital, made their careful studies of the different types and of the therapeutic value of serum in the treatment of pneumonic infection of the different types. In their researches (see Health News, February, 1916) they classified the pneu- mococci into four groups, designated as " Types I, II, III and IV." It was found that these differed from each other in their immunological reactions, Type I organisms being agglutinated only by serum of an individual immunized against Type I organisms, etc. In Type IV were included a number of pneumococci which could not be included in either I, II or III, which differed from each other in immunological reaction, but which had certain characteristics in common. It is the organisms of this group or type which are found commonly in the mouths of normal indi- viduals. In the following summary are presented certain cogent facts with reference to the various types and their relation to prevalence, treatment, and mortality of pneumonia: Type I Mortality about 25 per cent in untreated cases, 3 to 10 per cent in treated cases. Homologous serum available for treatment. Type II Mortality about 33 per cent. No serum. Type III (Pneumococcus mucosus) Found occasionally in normal mouths (10M2 per cent). Mortality 45 per cent to 50 per cent. No serum. Type IV Includes several subtypes. Present in 40 per cent to over 50 per cent of normal mouths. Cases frequently atypical. Mortality about 16 per cent. No serum. In the past there has been much uncertainty regarding the com- municability of pneumonia. While a large number of people were known to be carriers of pneumococci, it was observed that, Types of pneumococci Type IV Relation of types to diseases Communica- bility of pneumonia 61 in most instances, neither they nor those who came in contact with them, developed pneumonia. On the other hand, it was at times noted, for instance, that following admission of a case of pneumonia to a hospital ward, other cases promptly developed. In cities and in more crowded communities pneumococci dur- ing the winter months and by early spring are very generally dis- seminated; from 20 to over 50' per cent of healthy persons may harbor the organism and nearly every person at some time probably ■does harbor it for varying periods of time. The virulence of the pneumococcus fluctuates markedly, more so possibly than any other known incitant of infection. It may quickly be greatly exalted or may deteriorate rapidly. Outside the body it not only deteriorates but dies in a comparatively short time. Dif- ferent strains vary in these respects. Nearly everyone doubtless possesses some degree of immunity to pneumococcus infections; but many in a community are often ■depleted by illness or other conditions of life which increase their susceptibility. In the light of these facts it is evident that com- plex conditions affecting the dissemination of the pneumococcus, changes in its virulence and the susceptibility of its various hosts determine the development and spread of pneumonia. Thus, it is not difficult to understand why it is that pneumonia does not always spread in households or hospitals and why occasionally it does, and finally why in the army camps its development and spread became such a serious problem. Although in general something of prognostic value may be gleaned from the statistics of the mortality in the four types of pneumococcus pneumonia, the prognosis in pneumonia should only be determined by clinical observation at the bedside of each case from day to day. It is not safe to give a definitely favorable prognosis early in a case of seemingly mild infection; nor is it wise to give an unfavorable prognosis early in a case of severe infection,- the former may die and the latter recover. For this reason if the case is a Type I infection and is to be treated with serum, the serum should be given promptly. It has been found possible to produce a serum which has given excellent results in the treatment of Type I pneumonias, when given under proper conditions. Thus far no serum has been pro- duced for the other types which is of sufficient value to warrant Prognosis Production of serum 62 distribution. In view of the number of pneumococcus strains included in Type IV, the production of a serum for the treatment of Type IV pneumonias is not practicable. In view of this fact, it is fortunate that the case mortality is relatively low (16 per cent). Type I serum is specific for Type I pneumonia, and is not only of no value in the treatment of cases incited by other types, but may actually do harm. It should never be administered until the type of organism has been determined. From what has already been said, it will be self-evident that the use of " poly- valent" serums, said to be produced through immunization of horses against all of the various types of pneumococci, is not to be commended. In well-conducted hospitals the mortality has been greatly reduced. At the Rockefeller Hospital the mortality has been reduced to less than 7 per cent in the treated Type I cases. At Camp Wheeler seventy-two cases were treated with the N. Y. State serum with only two deaths and these were due to com- plications. The mortality of all cases treated and untreated was approximately 20 per cent, but in those treated with this serum less than 3 per cent. Although a marked reduction in mortality has occurred following treatment with the homologous serum under the carefully controlled conditions described above, unfortu- nately the results of its general use in the State have been much less satisfactory. Investigation of a large number of fatal cases in which State serum has been used has revealed the fact that in a vast majority one or more of the following conditions have prevailed: 1 Serum has been given late. 2 It has been given in too small doses. 3 Only single doses have been given. For obvious reasons it has been considered necessary to restrict the distribution of State antipneumococcus serum to those com- munities in which laboratory facilities for the type diagnosis are available and in which qualified physicians have been appointed, usually upon recommendation of the local health officer, to admin- ister the serum. Specific action Restrictions upon distribu- tion 63 A number of local laboratories are prepared to carry on type diagnosis. Revised lists of such laboratories will be published from time to time. Health officers of many municipalities to which such laboratory service is accessible have been furnished with emergency supplies of Type I serum. Additional serum may be obtained by telegraphing or telephoning either to the State laboratory at Albany or the State branch laboratory, 338 East Twenty-sixth street, New York City. It is important, in collecting sputum for laboratory diagnosis, to obtain, if possible, that which has been coughed up from the deeper air passages. When sputum can not be obtained, as so frequently happens with children, a miscellaneous outfit with tube and swab may be used, as much secretion as possible being col- lected from the pharynx. Collect sputum specimens in sputum jar outfits with pink infor- mation blanks and labels.* This instruction should be followed without fail, since at the State laboratory, specimens for examina- tion for tubercle bacilli (yellow label) are sterilized before the packages are opened, a procedure which would render pneumonia specimens useless. Information blanks should invariably be completely filled out. In each case the blank should contain the time of onset, location and extent of lesions, morning and evening- temperature and pulse rate. The physician should state whether or not serum is desired. Specimens should be sent to the nearest laboratory approved for this purpose with the least possible delay. When an examination shows the presence of Type I pneumococci, serum should be administered as soon as possible. As with the administration of antitoxin in diphtheria, the value of antipneumococcus serum becomes less with each day's delay in administration. In the administration of large amounts of foreign serum intravenously, moderate reactions, characterized by chill and eleva- tion of temperature and pulse, are not very unusual. These are usually evanescent and yield promptly to the hypodermic injection of adrenalin (epinephrin) or atropin sulphate. Reactions are less likely to occur when serum is properly diluted with warm saline and injected slowly by gravity. Serum rashes are fre- quently seen. Laboratory- centers Sources of supply Collection of sputum for diagnosis Send neces- sary data Avoiding delay Serum re- actions * See page 56. 64 In persons especially sensitive to horse serum, unless proper precautions are taken, serious anaphylactic reactions may occur. Information should always be obtained regarding asthmatic ten- dencies or susceptibility to hay fever and also regarding previous administration of diphtheria or other immune serum. It should always be borne in mind that when a previous dose of serum has been administered and six or more days have elapsed, the patient may have become sensitized to horse serum. Whenever there is a suspicion that a patient may be hyper- sensitive to horse serum, every precaution should be taken to pre- vent a reaction. A skin test may give information of value (see directions in circular accompanying serum), although nega- tive results are not always dependable. In questionable cases it is advisable to begin the administration of serum by giving approximately .025 cc., following this after an interval by 1 cc. also given subcutaneously; after another interval approximately 2 cc. may be given intravenously and the amount doubled at half hour intervals until it has reached 25 cc., after which the remaining serum may be given. A preliminary subcutaneous injection of 0.5 cc. of serum should he given two to four hours before the large dose, unless the patient has been completely desensitized as described above. The desensitizing dose should also be repeated whenever an interval of six or more days elapses between injections, since, as a result of the previous injections, the patient may be in a condition of extreme susceptibility. The initial therapeutic dose in adults should usually be 100 cubic centimeters. This should ordinarily be followed in twelve hours, unless distinctly favorable results contraindicate, by a second injection of the same amount. A third and fourth injec- tion at the same intervals may be required before the desired response occurs. The technique of intravenous administration of serum is similar to that used in the administration of arsphenamine, and the same preparation of the Held of operation is required to maintain sur- gical asepsis. Preferably an infusion of 200 cc. of sterile physio- logical saline solution at a temperature of 45° C. (Ill0 F.) should be prepared, the serum being added after the injection of the saline solution has been begun. The serum should be poured Hyper- sensitivity from previous adminis- tration Precautions to be observed Administra- tion of serum Preparation 65 carefully from the bottle, or transferred with a pipette, to avoid carrying over the small amount of sediment which is often present. Injection should be made intravenously by gravity and should be begun very slowly, the physician watching carefully for evi- dences of anaphylactic reaction. The diluted serum should be maintained constantly at body temperature. As the continuance of production of antipneumococcus serum depends upon the results obtained from its use, it is a matter of great importance that the State laboratory receive detailed infor- mation regarding results in each instance. Physicians using State serum are asked to cooperate in each case by filling out and returning the questionnaire shown below. Injection Value of data Report Required from Physicians Using State Antipneumo- coccus Serum (Front) Record All Following Data Possible. Chart P. R. T. on Opposite Side Name of Patient Occupation Age Address Sex Color Clinical Diag.: Original Date of Onset Duration Present Recovery Death How Contracted SYMPTOMS: Fever, chill, sweating, loss of appetite, strength, weight, emaciation, headache, general malaise, pain Hoarseness, cough, sputum rusty, hemorrhage, dyspnoea; Nose bleed, rose spots, diarrhea, mucus, bloody stools, gurgling, palpable spleen, liver, bladder, tumor Skin eruptions loss of hair, glandular enlargement, nocturnal headache; Paralysis - motor, sensory, facial, trunk, extremities (upper, lower), ascend- ing, descending, spastic, flaccid, tonic, clonic, tremor, convulsions, delirium, vertigo, vomiting, reflexes , rigidity, trophic changes , deformities ; Sensorium - clear, confused, coma. PHYSICAL SIGNS: (location and extent of lesions) Complications Remarks: 66 Mo. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Day Disease 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I I 1 1 1 1 I I | I I I I P 1 R 1 T |M| E|M| E|M| E|M|E |M|E |M|E |M|E |M|E |M|E|M|E |M|E |M| E|M| E|M| E|M| E|M| 160 1 60 1 107 Illi 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 150 1 55 | 106 Illi 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I 1 140 1 50 | 105 Illi 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 130 1 45 | 104 Illi 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 120 1 40 | 103 Illi 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 110 1 35 | 102 Illi 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 100 1 30 | 101 Illi 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 90 1 25 | 100 Illi 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 80 1 20 | 99 Illi 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 70 1 15 I 98 Illi 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 । 1 1 1 60 1 io I 97 Illi 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 50 1 5 | 96 Illi 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 40 1 1 95 Illi 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Urine | | | | I I I I I I I I 1 I I I 1 1 I I I 1 I 1 I I I I I I | | Feees 1 I I I I I I 1 I I 1 1 1 1 1 I 1 1 1 1 1 1 1 1 1 1 1 1 I 1 I I (Back) TREATMENT Serum, Vaccine (date, amount, time) Results Date Signed Address Return to Laboratory, State Dept, of Health, New Scotland Ave., Albany. Note: For directions for collection of sputum specimens for pneumococcus type differentiation, see under " miscellaneous specimens," page 56. Rabies Rabies is an acute, rapidly fatal disease. The infectious agent in the saliva of dogs suffering from the disease is commonly con- veyed to man through the broken or abraded skin. The virus follows the nerve trunks from the seat of injury to the spinal cord, thence to the medulla and brain. The period of incubation in man varies from 14 days to a year, the average being 40 days. The diagnosis of rabies in animals is made through micro- scopical examination of the brain. When a dog is suspected of having the disease, the head should be carefully packed in ice with sawdust and sent by through express routes to the New York State Veterinary College, Department of Pathology and Bacteri- ology, Cornell University, Ithaca, N. Y. When a dog, suspected of having rabies, has bitten a person or other animal, the dog should be isolated and observed for ten days. Diagnosis Observation of suspected animals 67 If at the end of that time it is still alive and well, it can usually be safely assumed that it is not suffering from rabies. The method of treatment which Pasteur first used is an active immunization by inoculation with repeated doses of an attenuated virus. When a person has been bitten by a dog found to be suffering from rabies, immunization should be begun at once. The Research Laboratory of the New York City Department of Health, Sixteenth Street and East River, prepares this material for distribution to physicians in the city of Greater New York and is authorized to distribute it to physicians outside the city at a nominal cost. Through an arrangement between the State and the New York City departments of health, health officers and other physicians having occasion to administer the Pasteur treatment to persons unable to pay for the material can secure it free of charge by applying, by telegram or otherwise, to Dr. W. C. Noble, Branch Laboratory, New York State Health Department, 338 East Twenty-sixth street, New York City. " Pasteur treatment " Preventive Treatment Cauterization of the ivound The bite of a rabid dog should be immediately and thoroughly cauterized by a physician with strong carbolic acid, or nitric acid, or the actual cautery (Paquelin). This destroys and removes from the wound much of the virus. The period of incubation is thus prolonged, affording far greater chances of success from the preventive inoculation. Technique Preventive inoculation From seventeen to twenty-one days are required for the treat- ment with rabies vacqine. After careful cleansing of the skin with soap and water and disinfection with alcohol or iodine, the injection may be given with a sterile syringe of the capacity of 3 cc. or 60 minims. If iodine is used to disinfect the skin it must be removed with alcohol. The syringe should be carefully boiled and if disinfectants are used these must be removed with sterile water because any disinfectant in the material which is to be injected destroys its potency and immunizing action. The injections are distributed in the subcutaneous tissues of the abdo- men. Widely separated spots are selected for injections. 68 Doses to be inoculated Kabies vaccine should be kept on ice from the moment it arrives. The quantities to be inoculated will be forwarded daily by mail, double portions being sent on Fridays and Saturdays or the day before holidays, hence the importance of examining pack- ages for the presence of more than one bottle. The dose to be inoculated is marked on the bottle each day. During the first three or four days it is larger, 4 to 6 cc., according to the age of the patient, and should be given in two separate injections, one immediately after the other. The subsequent 2 cc. doses should each be given in one injection. As it is desirable that the virus be drawn into the syringe directly from the bottle, a little more than the exact dose will be sent each time. If, owing to the irregularity in the mail service, the treatment for two days should arrive simultaneously, the bottles should be used in the order of the dates, the first one should be given at once and the second midway between that time and the expected arrival of the next treatment. The bottles are labeled with the date on which they are filled and the doses should be given in the order in which they are sent. If, for any reason, the contents of any par- ticular bottle are not given, notice of the fact should be sent at once by telegram, identifying the bottle by its date. A careful record should be kept of each dose; record the dose by its date and the date of its administration. Care of the patient during treatment The bowels should be kept freely open and tea, coffee and alcoholic beverages used but sparingly. Ordinarily patients are able to attend to their work. Tenderness and erythema at the site of inoculation may develop. If these signs are marked and require treatment, the application of cold or a wet dressing of acetate of aluminum solution will be found useful. Some malaise may be present. Notice of other unusual symptoms should be sent promptly, especially those of neuritis. Exposure to cold, especially cold bathing, should be avoided during the course of treatment. Caution Physicians are cautioned against accidentally inoculating them- selves with virus of later injections. Although the larger early Precautions to be observed 69 doses contain the virus in a greatly attenuated form, owing to pro- longed drying, this is not true of the later smaller doses which contain much more virulent material and should be promptly dis- posed of and never used except as directed. The empty vials should be burned or otherwise disinfected. Physicians must without exception keep the laboratory informed of the course of treatment and send without delay the following data: 1 Name and age of patient. 2 Location, date, and severity of bite. 3 Treatment of bite, nature and extent of cauterization. 4 Any information bearing on the diagnosis of the animal inflicting bite. 5 Report on the condition of patient two weeks after the end of treatment, by postal, which is inclosed with circular. The treatment by means of this preventive inoculation should not be undertaken by physicians or health officers who are not familiar with it. The sanitary supervisor should be consulted in any emergency, but if any questions arise during the treatment communicate with the Branch Laboratory, 338 East Twenty-sixth street, New York City; telephone number, 8924 Madison Square. Unless all the directions and precautions are followed exactly the distribution of the material for the treatment will be imme- diately discontinued. Data required Smallpox The inciting organism in smallpox is not definitely known. The virus is regarded by some observers as belonging to the group of Chlamydozoa, organisms of uncertain classification pro- vided with a capsule supposed to be formed from the tissues of the host. The virus is passed through a Berkefeld filter with difficulty and, according to certain observers, loses some of its activity as a result of such filtration. Vaccinia is an infection developing in susceptible persons after vaccination with a virus obtained from cowpox. Experimental study of the immunity induced by cowpox and smallpox has demonstrated the fact that these diseases are incited by closely related organisms if not by the same species. The organism is Inciting or- ganism unknown Production of vaccine virus 70 apparently so attenuated in the cow that it can safely be used to vaccinate man. Calves are used for the production of vaccine virus on a commercial scale. An effort has been made in the State laboratory to adapt the method of Noguchi, in which rabbits are used, to the production of virus on a large scale. It has been found impossible to produce a vaccine the potency of which can be depended upon in all cases. Since satisfactory vaccine virus can be obtained commercially at comparatively small expense, the State laboratory does not dis- tribute this product. K very satisfactory virus can be obtained from the New York City Department of Health, or from reliable commercial houses. In using any vaccine virus the physician should keep in mind the fact that its activity may be materially affected if it is stored or shipped under unfavorable conditions. Most of the unsuc- cessful vaccinations would undoubtedly be avoided if no vaccine were used other than that which had been kept constantly at ice-box temperature from the time of its preparation to the time of its use. In any instance, vaccine which has been kept for days and perhaps weeks upon a shelf at room temperature should never be accepted. Not dis- tributed by State labora- tory. Deteriora- tion Syphilis, Gonorrhea and Chancroid Laboratory tests essential Laboratory aids are essential in the diagnosis and treatment of syphilis, gonorrhea and chancroid. In cases of chancroid, a com- plicating syphilitic infection can not be excluded without labora- tory examination. The diagnosis of gonorrhea should always be confirmed by microscopic examination of the discharge. The cure of both syphilis and gonorrhea can only be ascertained by repeated examinations of the blood and discharges. Legal Requirements The requirements of the Public Health Law and Sanitary Code, with reference to the securing and submission for examina- tion of laboratory specimens, may be summarized as follows: Suspected persons When there is reasonable ground to suspect that any person within the jurisdiction of a board of health or health officer has 71 an infectious venereal disease and is likely to be a source of infection to others, the board of health or health officer shall cause an examination to be made and the suspected person shall permit such specimens of blood or bodily discharge to be taken for labora- tory examination as may be necessary to establish the presence or absence of the disease or infection (with certain restrictions). Public Health Law, article 17-b, section 343-m. Convicted persons Every person convicted of vagrancy under certain laws (see "Laws and Regulations relating to Syphilis, Gonorrhea and Chancroid," issued by Department), or convicted of frequenting disorderly houses or houses of prostitution, shall be reported by the magistrate to the board of health or health officer of the dis- trict in which the offense occurs and shall not be released from the jurisdiction of the court until the convicted person has been examined as provided for in the preceding section (343-m). Public Health Law, article 17-b. Reports and information confidential All reports or information secured by a board of health or health officer under this article shall be absolutely confidential, except in so far as is necessary to carry out the purposes of the article. Public Health Law, article 17-b, section 343-r. Violations Any person violating any of the provisions of this article * * * shall be .guilty of a misdemeanor. Public Health Law, article 17-b, section 343-s. Results of laboratory examinations to be reported under certain conditions Whenever a laboratory examination by a laboratory or person other than the attending physician discloses the existence of a case of communicable disease, the laboratory or person making the examination shall report to the health officers of the munici- palities in which the laboratory is located and from which the specimen came. Public Health Law, article 3, section 25. 72 Submitting specimens It shall be the duty of every physician attending a case of syphilis, gonorrhea or chancroid to submit to an approved labora- tory such specimens and data as may be prescribed in the special rules and regulations issued by the commissioner of health. (Sec page 73.) Sanitary Code, chapter 2, regulation 2-a. Records not to be disclosed Records relating to cases of syphilis, gonorrhea and chancroid shall not be made public so as to disclose the identity of the persons to whom they relate, except in so far as necessary for the enforcement of laws and regulations. Sanitary Code, chapter 2, regulation 29-b. Reporting persons violating laws and regulations If any person affected with syphilis, gonorrhea or chancroid shall violate any law or regulation and thereby, in the judgment of the physician, become a menace to the public health, the physician shall immediately report the name and address of the patient to the local health officer, and the latter shall forward a copy to the State Department of Health. The local board of health or health officer shall take all necessary steps to prevent the person reported from becoming a menace and to assist in his cure. Sanitary Code, chapter 2, regulation 29-d. Duties of physicians and others Under the Public Health Law concerning syphilis, gonorrhea and chancroid it shall be the duty of every physician or other person required to perform any duty or refrain from any act under article 17-b of the Public Health Law, as amended by chap- ter 264 of the Laws of 1918, providing for the regulation of syphilis, gonorrhea and chancroid ("venereal diseases"), to take all steps incumbent on him and necessary to carry into effect the provisions of the said law. Sanitary Code, chapter 2, regulation 29-e. Duties of toion and city clerics Town and city clerks before issuing marriage certificates shall require from each of the applicants the following statement: " I have not to my knowledge been infected with any venereal disease, 73 or if I have been so infected within five years I have had a labora- tory test within that period which shows that I am now free from infection from any such disease." Domestic Relations Law, article 3, section 15. Adopted by the State Commissioner of Health governing the collection and submission of specimens from cases of syphilis, gonorrhea or chancroid for laboratory examination. 1 Syphilis. (a) Submission of specimens. (b) Collection of specimens. 2 Gonorrhea. (a) 'Submission of specimens. (b) Collection of specimens. 3 Chancroid. In accordance with the requirements of Regulation 2a, chap- ter 2 of the Sanitary Code, the following rules and regulations are hereby established relating to the collection and submission of specimens for laboratory examination: Special Rules and Regulations The Collection and Submission of Specimens for Labora- tory Examination In every case in which there is evidence of syphilis, gonorrhea or chancroid, the attending physician shall submit to the labora- tory of the State Department of Health, or to a laboratory approved for that purpose by the State Commissioner of Health, the specimens required for examination listed below, accompanied by the following data: Kame, address, age, occupation, and marital condition of the patient, clinical diagnosis, source and date of infection. Syphilis (a) Submission of specimens A physician attending a positive or suspected case of syphilis shall send, whenever possible, such case to a laboratory where a careful examination of the exudate from the chancre or other 74 local lesion, with dark field illumination, shall be made. The physician shall also submit to a laboratory a specimen of blood for the complement fixation (Wassermann) test. When laboratory tests of the blood made during the first six weeks after the appearance of the lesion suspected to be a chancre are negative, a further specimen to test the diagnosis shall be submitted between the end of the sixth week and the end of the eighth week following the appearance of the lesion. A physician attending a case of constitutional syphilis (the so-called secondary, latent or tertiary stages of the disease) shall submit to a laboratory a specimen of blood of such case for the complement fixation (Wassermann) test. The above examinations shall be made in a laboratory or laboratories approved for this purpose by the State Commissioner of Health. (b) Collection of specimens Fresh specimens of exudate from the lesions of syphilis, especially from chancre, which are to be examined with the dark field illumination, shall be taken as follows: Remove a bit of the hard scab, sop the blood until bleeding stops, then squeeze the sore to express a drop of serum. All such specimens should be examined immediately. Specimens of blood for the complement fixation (Wassermann) test, consisting of not less than three cubic centimeters, shall be drawn into the sterile tube supplied for this purpose, as described on the blanks which accompany the laboratory outfits. Gonorrhea (a) Submission of specimens A physician attending a positive or suspected case of gonorrhea shall submit the specimens designated below to a laboratory. In those cases in which clinical evidence of the disease is present, and the first laboratory examination was negative, a second speci- men shall be submitted. These examinations shall be made in a laboratory or laboratories approved for this purpose by the state commissioner of health. 75 (b) Collection of specimens In acute or active cases of gonorrhea, specimens of the urethral discharges shall be collected in the manner described on the blanks which accompany the laboratory outfits, furnished for this pur- pose. In the male, if no discharge is evident, specimens shall be obtained after careful massage of the prostate by compressing the urethra with the finger and stripping toward the meatus. In the female if no urethral discharge is evident, specimens shall be taken by compressing the urethra with the finger and stripping toward the meatus. Specimens of fresh exudate shall be taken from the cervix uteri, after careful cleansing of the os, and also from Bartholin's glands when it is evident that these are infected. All specimens of the discharge secured as above indicated shall be at once smeared on the glass slides as described on the blanks accompanying the laboratory outfits furnished for this purpose. Chancroid Without laboratory tests it is impossible to distinguish with certainty chancroid from chancre, hence all such lesions shall be considered chancre until the complement fixation (Wassermann) test of the blood is negative. A physician attending a positive or suspected case of chancroid shall send, whenever possible, such case to a laboratory where a careful examination of the exudate from the chancroid or other local lesion, with dark field illumination, shall be made. The physician shall also submit to a laboratory a specimen of blood for the complement fixation (Wassermann) test. When laboratory tests of the blood made during the first six weeks after the appearance of the lesion suspected to be a chancroid are negative, a further specimen to test the diagnosis shall be submitted between the end of the sixth week and the end of the eighth week following the appearance of the lesion. The above examination shall be made in a laboratory or labora- tories approved for this purpose by the state commissioner of health. 76 Laboratory Tests for Syphilis The complement fixation test Principles involved Complement fixation was first nsed by Bordet and Gengou to identify the typhoid bacillus. Subsequently Wassermann adapted the reaction to the diagnosis of syphilis by using a preparation of the liver of a syphilitic fetus as a syphilitic antigen, but Was- sermann's original method has now been modified. In the course of infection or as a result of inoculation with the incitants of infection, the body tissues react and acquire the property of combining with the inciting agent of the reaction neutralizing its action. This peculiar property may be possessed in high degree by the tissue fluids and especially the blood serum. Any substance giving rise to this reaction of immunity is termed an antigen. When the red blood cells of the sheep are injected into the rabbit, the blood serum of the rabbit will not only com- bine with the red blood cells of the sheep in a test tube but it will also hemolyze (lake) them. After heating to 56 degrees C. the blood serum retains the property of combining with the sheep cells but loses its power to hemolyze them. The addition of a little fresh serum (complement) from a normal guinea pig restores the hemolytic power. By titration the exact quantities of rabbit immune serum (amboceptor for sheep cells) and of fresh normal guinea pig serum (complement) which will hemo- lyze (lake) a definite quantity of sheep's red blood cells can be determined. If this quantity of complement is added to a mix- ture of syphilis antigen and serum from a suspected case of syphilis, one of two' things happen: If the case is one of syphilis all three combine and the complement is fixed so that it can not hemolyze a mixture of sheep's cells and their immune serum; if the case is not one of syphilis no combination takes place and the complement is free to hemolyze the red blood cells mixed with their immune serum. It is impossible to determine whether or not complement and syphilitic antigen and patient's serum have combined because there is no visible change when they combine. Hemolysis (laking) of the red blood cells is readily seen and by measuring it the amount of complement free or fixed by the 77 patient's serum can be determined. Four plus signifies complete fixation of the complement; three, two and one plus, diminishing degrees of fixation. Plus-minus indicates very slight and doubt- ful fixation. A single negative reaction does not necessarily preclude a diagnosis of syphilis. Not infrequently complement fixation can not be demonstrated before the second or third week following infection and the appearance of the reaction may be still further delayed. In cases which have been insufficiently treated, the Wassermann reaction may be absent for a time and reappear later. If the results of first tests are negative or uncertain further specimens should be submitted if there is reason to suspect that infection has occurred. After complement fixation has been demonstrated, periodical tests will give valuable information regarding the efficacy of treat- ment. Immediately after beginning treatment an intensification of the activity of the blood may be noted, but this should not be regarded as an indication for discontinuing or modifying treat- ment. The possibility of stimulating a positive reaction in cases of syphilis through administration of a "provocative" dose of arsphenamine may sometimes be taken advantage of in diagnosis of obscure cases. In certain stages of syphilis in which there is involvement of the central nervous system and in which no complement fixa- tion is obtained with the patient's blood serum, the test performed with large amounts of spinal fluid may be positive. The spinal fluid in some cases shows a positive reaction before the involve- ment of the central nervous system has become sufficiently extensive to be recognized clinically, making it possible to diagnose the specific nature of the condition and to institute treatment before irreparable damage to the central nervous system has occurred. In performing the complement fixation (Wassermann) test for syphilis, to insure accuracy of results, two antigens are used. The following forms are used for making reports upon specimens. Interpre- tation of negative results Value of periodic tests Tests upon spinal fluid Reports and their interpre- tation 78 Forms Used for Reporting Upon Complement Fixation Tests for Syphilis When Partial Fixation of Complement Only Is Obtained With One or Both Antigens the Following Report Blank Is Used. (Front) Laboratory number , 19 In the examination of the specimen from Name Address Taken on For or by Dr. Definite fixation of complement was not obtained with either of the antigens used in the complement-fixation test for syphilis. See below numbers. In the test of the specimen with PLAIN ALCOHOLIC ANTIGEN: 1. No fixation of complement was obtained 2. The fixation of complement was slight ± 3. The fixation of complement was partial + In the test of this specimen with CHOLESTERINIZED ANTIGEN: 4. No fixation of complement was obtained 5. The fixation of complement was slight ± 6. The fixation of complement was partial + For interpretation of results, see other side. AUGUSTUS B. WADSWORTH, M. D. Director (Back) The results of the complement-fixation test for syphilis should always be interpreted in the light of the clinical evidence. Unless there is, clinically, definite reasons to believe that the case is one of syphilis, a diagnosis of syphilis should not be based solely upon a slight (±) or partial (+) reaction. This is especially true if it is obtained of the cholesterinized antigen only. Experience has shown that the alcoholic antigen does not give slight or partial reactions with any considerable proportion of sera from persons free from syphilis. Cholesterinized antigen, on the con- trary, has been observed to give slight or partial reactions with 10% or less of sera from persons apparently free from syphilis, depending upon how sensitively the test is adjusted. In a case that has had no clinical signs of syphilis a slight or [ artial reac- tion, obtained only with cholesterinized antigen is usually considered nega- tive. In a known case of syphilis that has had specific treatment such a reaction, is considered to indicate that further treatment is required. It is recommended that confirmatory specimens be submitted in those cases in which the result of the first examination can not readily be interpreted in the light of the clinical evidence. If, in any case, a specimen is sent for confirmation, the physician is asked to note that fact on the accompanying history blank. 79 When Definite Fixation of Complement is Obtained, the Follow- ing Report Blank is Used (Front) Laboratory number » 19 In the examination of the specimen from Name Address Taken on For or by Dr. Definite fixation of complement was obtained with one or both of the antigens used in the complement-fixation test for syphilis. See below numbers - In the test of this specimen with PLAIN ALCOHOLIC ANTIGEN: 1. No fixation of complement was obtained 2. The fixation of complement was slight ± 3. The fixation of complement was partial + 4. The fixation of complement was definite 2+ 5. The fixation of complement was nearly complete 3+ 6. The fixation of complement was complete 4+ In the test of the specimen with CHOLESTERINIZED ANTIGEN: 7. No fixation of complement was obtained 8. The fixation of complement was slight ± 9. The fixation of complement was partial + 10. The fixation of complement was definite 2+ 11. The fixation of complement was nearly complete 3+ 12. The fixation of complement was complete 4-|- For interpretation of results see other side. AUGUSTUS B. WADSWORTH, M. D. Director (Back) The results of the complement-fixation test for syphilis should always be interpreted in the light of the clinical evidence. A reaction of marked intensity (2+, 3+ or 4+), if obtained with the plain alcoholic antigen, is usually considered to indicate syphilitic infection. Experience has shown that with a small proportion of known syphilitic sera, the alcoholic antigen may fail to react, or may react but weakly. In these cases the reaction may occasionally be stronger with cholesterinized antigen. A reaction with cholesterinized antigen is therefor considered to have specific significance and to indicate the necessity for further treatment in cases in which syphilis has previously been diagnosed. Although in our experience the cholesterinized antigen has given slight 80 or partial reactions with a certain proportion of sera from persons apparently free from syphilis, it has not been observed to give reactions of marked intensity in any number of cases in which the possibility of syphilis could be excluded. In any case in which the result of the first test can not readily be interpreted in the light of the clinical evidence, it is recommended that confirmatory specimens be submitted. If, in any case, a specimen is sent for confirmation, the physician is asked to note that fact on the accompany- ing history blank. When No Fixation of Complement is Obtained with Either Antigen the Following Report Blank is Used Laboratory number , IS In the examination of the specimen from Name Address Taken on For or by Dr. No complement-fixation was obtained with either of the antigens used in the complement-fixation test for syphilis. In all doubtful cases, confirmatory specimens should be forwarded at once. If, in any case, a specimen is sent for confirmation, the physician is asked to note that fact on the accompanying history blank. AUGUSTUS B. WADSWORTH, M. D. Director Direct examination for Treponema pallidum An immediate diagnosis of syphilis in the primary stage can usually be made through demonstrating the treponemata in exudate from primary lesions, using the dark field method. Since it is necessary to take the material at the time of examination, the procedure can only be carried out when there is a laboratory near at hand. 81 Form Used for Submitting Information Accompanying Blood Specimens for Complement Fixa- tion Test for Syphilis (Front) SYPHILIS See directions for collecting blood on other side Examination of Blood Serum Number of specimens, 1, 2, 3, etc Where examined .Date. Results of previous examinations. Results of examinations, T. pallidum Date of taking blood Name of patient. .Time Age. Address Occupation . Sex.. Color Married Children Date. Single Wid. How contracted: Acquired Initial lesion Treatment Hereditary Clinical signs: Primary Present symptoms Secondary Tertiary Duration of disease. Has arsphenamine been administered ? . Date. Has mercury been administered? .Date. Has patient taken alcohol within 24 hours ? Other information concerning specimen. Name and address of physician Name and address of health officer Physicians and health officers are requested to answer all questions on the blank up to this point and return it with the specimen. Laboratory number Examined Received Plain alcoholic antigen Examiner Result of examination: Cholesterinized antigen (Back) Scrub skin over median basilic vein with soap and water. Wash off the soap and disinfect the skin with alcohol 70%. Tie a bandage or place a tourniquet around the arm, just above the biceps and below the deltoid muscles, tight enough to constrict the venous circulation and yet not stop the pulse below. The distended vein ought to be visible or palpable. DIRECTIONS FOR COLLECTING BLOOD 82 Pass the needle at a slight angle, nearly parallel to the long axis of the vein, through the skin, upward, into the vein. When the needle has entered the vein the point of it is free, meets no resistance, a fact which may quickly be detected if the needle passes easily through the skin. Immediately after the needle enters the vein, blood will flow. Taking all precautions against contamination, let the blood flow into the sterile test tube and cork it tightly when three-quarters full. At least two cubic centimeters of blood are necessary for the examination. With practice, blood may be drawn from the vein with a sterile hypodermic syringe introducing the needle as above described, provided the syringe is not too small and will hold a sufficient quantity of blood. The blood should be transferred to the sterile test tube immediately before it coagulates. Before withdrawing the needle the pressure on the arm above should be removed to avoid hemorrhage into the tissues. A sterile dressing should then be placed over the puncture. When handling the sterile glass tube and cork, avoid touching the inner surfaces with anything that is not sterile. The tube should be slanted for one-half hour at room temperature, until the blood has coagulated. Blood should preferably be taken about two hours after eating. The specimen should be sent to the laboratory as soon as possible. Please wrap used needle in piece of paper and return with specimen. The diagnostic facilities of the laboratory are designed primarily to render prompt assistance to health officers and physicians in the diagnosis and con- trol of communicable diseases, and to provide laboratory service for all persons in the State for -whom such service is not otherwise available. Physicians are especially urged to make use of the facilities of approved county, municipal and private laboratories whenever such facilities are available in their vicinity. Arsphenamine Distribution Arsphenamine for treatment of syphilis is distributed by the State laboratory in ampules containing 1.2, 0.6 and 0.4 grams. At present it is distributed only for use in authorized clinics, hospitals and institutions, by physicians who have been approved by the Commissioner of Health. Plans are now being made for more general distribution. Directions for administration accom- pany each package. When all necessary precautions are observed, marked reactions are rare. An unusual reaction occurring during or following injection of arsphenamine distributed by the Division of Labora- tories and Research should be immediately reported in detail to the laboratory. Otherwise report slips should be filled out and returned to the laboratory at the end of each month. Unusual re- actions 83 Report Required of Physicians Using Arsphenamine Dis- tributed by the State Laboratory REPORT ON THE USE OF ARSPHENAMINE (Front) Name of patient. Address Age .Sex. .Date of earliest symptoms. Treated at Clinical diagnosis Complications Stage of the disease. Remarks Results of complement-fixation test or microscopic darkfield examination Date (Back) Mercurial treatment - previous, present. Arsenical treatment - previous. Other treatment. Date of Injection Dose in Grams Preparation No. Reactions following Injections of Arsphenamine (Underline words descriptive of symptoms) No reaction. Fever, chill, headache, nausea, vomiting, diarrhea, dyspnea Other symptoms Remarks I also certify that the purchase of the drug would be a hardship in this case. Date. Signed. M.D. Address. Physicians who fail to report promptly are liable to have the distribution of arsphenamine to them suspended. 84 Laboratory Tests eor Gonorrhea In gonorrhea during the earlier stages of the disease the diagnosis is very readily made, but in the later stages of the disease it is not always possible to demonstrate the presence of the specific microorganism. After cleansing of the mucous mem- brane, however, an examination of the discharges from the deeper recesses often reveals the presence of the gonococci. In the male the prostate, the secretions of which may be exposed by massage, and in the female the urethra, the cervix, and the ducts of the glands of Bartholin most frequently harbor gonococci, whereas they are not readily found in the vaginal secretions. It is very important to send repeated confirmatory specimens when gonorrhea is suspected and the laboratory report is negative. Several smears may have to be carefully examined before gonococci are found. Form Used for Submitting Information Accompanying Specimens from Cases of Suspected Gonorrhea (Front) GONORRHEA Examination of Discharge or Blood Serum See directions on other side Number of specimen, 1, 2, 3, 4, 5, 6, 7, 8, 9, etc Results of previous examinations Date Date of collecting specimens . Time. From urethra Name of patient. Cervix uteri .Vagina. • Age. Address .Sex. Occupation Married Children. .Time in U. S. Single. . Color, Wid. When contracted. .Date first symptom. Duration of disease. Stage of the disease: Acute Number reinfections Chronic Amount discharge Character Treatment 85 Other information concerning specimen. Name and address of physician Name and address of health officer whom was this specimen taken. Physicians and health officers are requested to answer all questions on the blank up to this point and return it with the specimen. Laboratory number . Examined Received . Examiner. Result of examination. DIRECTIONS FOR COLLECTING AND SPREADING DISCHARGE ON SLIDE IN ACUTE OR ACTIVE CASES OF GONORRHEA {Back) Collect a fraction of a drop of the URETHRAL DISCHARGE on one end of a slide. Place the second slide at an angle to the first slide in the small drop of exudate, spread it in a thin film on the slide by a continuous sweep of the second slide across the first. Let the film dry in the air without heating it. Spread another film of the discharge on the second slide using the end of the first as a spreader. Replace the slides when dry, specimen sides together, and mail them to the laboratory. The film of exudate should be thin, evenly spread, and extend over only half the surface of the slide. If the drop is too large, clean the slide and collect another smaller drop. IN CASES HAVING NO EVIDENCE OF URETHRAL DISCHARGE In the male the prostate should be carefully massaged and then the speci- men obtained by compressing the urethra with the finger and stripping toward the meatus. The drop of discharge should be collected on one end of a glass slide and smeared at once., according to the directions given above for smearing specimens from acute or active cases. In the female, if no urethral discharge is evident, specimens should be taken by compressing the urethra with the finger and stripping toward the meatus. Specimens of fresh exudate should be taken from the cervix uteri, after careful cleansing of the os, and also from Bartholin's glands when it is evident that these are infected. Specimens of discharge thus secured should be at once smeared on glass slides according to the directions given above for smearing specimens from acute or active cases. The diagnostic facilities of the laboratory are designed primarily to render prompt assistance to health officers and physicians in the diagnosis and control of communicable diseases, and to provide laboratory service for all persons in the State for whom such service is not available. Physicians are especially urged to make use of the facilities of approved county, municipal and private laboratories whenever such facilities are available in their vicinity. 86 Form Used in Reporting Presence of Gonococci in Speci- mens Examined Laboratory number , 19 In the examination of the specimen from Name Address Taken on For or by Dr. Gonococci were found. {This report is based upon morphological examination alone.') AUGUSTUS B. WADSWORTH, M.D. Director Form Used in Reporting Negative Findings in Examination of Specimens From Cases of Suspected Gonorrhea Laboratory number , 19 In the examination of the specimen from Name Address Taken on For or by Dr. No gonococci were found. The failure to find gonococci in smears does not necessarily exclude the presence of gonorrhea, especially if the case is latent. The smears may not have been made from the infected area. Repeated confirmatory specimens should be sent if there is reason to believe the patient may be infected. AUGUSTUS B. WADSWORTH, M. D. Director Dr. Health Officer 87 Tetanus The bacillus and its toxin Tetanus develops after injury, the tetanus bacilli being intro- duced either at the time of the injury or subsequently. The tetanus bacillus is an organism which does not grow readily in the air and for this reason penetrating and badly lacerated wounds afford the most favorable site for its growth. It is present in soil contaminated with animal excretion. In dirty wounds the organism finds favorable conditions for its development and pro- duces one of the most powerful toxins known. It is this toxin which gives rise to the disease processes. After its production in the wound it is absorbed along the nerve trunks and the spinal cord and central nervous system are very quickly affected. The tetanus toxin possesses a chemical affinity for the nerve tissues with which it enters into combination. The toxin is produced so rapidly and is so potent that the period between the development of symptoms and the stage of the disease when the prognosis is unfavorable is extremely short. It is only in this period of the acute cases that antitoxin treatment is effective. Treatment, in addition to appropriate surgical care of wounds, consists of the immediate intraspinal inoculation of 5,00'0 to 10,000 units, followed by intravenous administration of large amounts of antitoxin - 10,000' to 40,000 units, with subsequent repetition. The antitoxin combines with the free toxin in the central nervous system and in the tissues generally, but it does not combine with the toxin which has become fixed in the cells, especially the nerve cells. This accounts for the failure of antitoxin to cure the disease when it is administered too late. The administration of antitoxin in appropriate dosage at the the time of the receipt of injuries practically always affords pro- tection against the development of the disease. The following is quoted from a circular issued by the Division of Laboratories and Research: Treatment Protective inoculation Distribution of Antitoxin Tetanus antitoxin is distributed in packages of 20,000 and 10,000 units for therapeutic use and in packages of 1,500 units for preventive immunization. Antitoxin may be obtained by physicians from supply stations maintained by the health officers, who are responsible for the prompt distribution of all 88 laboratory supplies from their own supply stations or, if it is unnecessary for them to maintain an independent station, from one near by. In emergencies, antitoxin may also be obtained from main depots in the county or municipal laboratories. Lists of such centers will be published from time to time or may be obtained upon application to the State laboratory. Physicians obtaining antitoxin must agree to report to the health depart- ment, within 60 days, the final results of its use, on the blank, which is en- closed in each package. (See page 89.) The blank should be filled out completely and returned to the laboratory. Experience has shown that the subcutaneous injection of an immunizing dose of tetanus antitoxin rarely fails to prevent the development of the disease. Whenever garden or street dirt, stable dust, manure, paper wads or powder from cartridges have been ground and forced into the injured tissues, a preventive dose of tetanus antitoxin should be given subcutaneously at the time the wound is dressed, or as soon thereafter as possible. This is especially recommended after Fourth of July injuries. While one injection is generally sufficient, if the wound continues to offer a site for possible infection, an additional subcutaneous injection should be given, and under exceptional circumstances, even a third. When repeated in- jections are given at intervals longer than a week or if at any time pre- viously the patient has been treated with horse serum or antitoxin, the pos- sible occurrence of anaphylactic shock should be guarded against by a pre- liminary injection of 0.5 cc. While the typical symptom complex of tetanus is unmistakable, the earliest evidences of the disease may be and frequently have been overlooked. Since to be of value it is essential that antitoxin be administered at the earliest possible moment, brief delay in diagnosis or in treatment may remove all possibility of recovery. By the time the first symptoms appear the disease is well advanced and all that can be reasonably expected of the treatment is the prevention of absorption of further amounts of active toxin by the nervous system. At the onset use intraspinally and intravenously any tetanus anti- toxin available, whether intended for immunization or treatment, and at once apply by telephone or telegram for an additional supply. Immuniza- tion Treatment Directions for the Use of Tetanus Antitoxin Immunizing dose. Fifteen hundred units of antitoxin should be injected subcutaneously if one injection only is given; one thousand units if repeated injections are given in two doses, 10-14 days apart; children 800 to 1000 units. Therapeutic dose. The antitoxin may be administered in several ways, none of which precludes the use of any or all of the others. Recent experi- ence has shown, however, that the intraspinal method is by far the most effective, while the intravenous, owing to prompter absorption, is preferable to the subcutaneous. Since antitoxin should be administered promptly, the first dose in experienced hands is usually given intraspinally and followed immediately by an intravenous dose. Treatment should be continued depend- ing upon the clinical signs, using subcutaneous administration unless the severity of the symptoms requires continuance of the intraspinal and intra- venous treatment. 89 (a) Inttaspinal injections of 5000 to 10 000 units repeated at 24 and 48 hour intervals. (b) Intravenous injections of 10,000 to 40,000 units repeated at 24 to 48 hour intervals. (c) Subcutaneous injections of from 10,000 to 20,000 units. Administration Subcutaneous. The antitoxin should be given by hypodermic injection deeply into the muscles on the anterior surface of the body. Intravenous. The median basilic vein should be used. In order to safe- guard against anaphylaxis 0.2 cc. of the dose should be allowed to circulate for a few moments before the remainder of the dose is injected slowly. The antitoxin which should be one degree above rectal temperature, may be diluted in equal parts of warm sterile physiological salt solution. Physicians are cautioned to be on the alert for any symptoms suggesting an anaphylactic reaction and especially if the patient at any time has been treated with horse serum or is subject to asthma. Lumbar puncture. This must be performed under strictly aseptic precau- tions in the third or fourth lumbar space. An anesthetic may be advisable, Select the notch nearest the line connecting the crests of the ilia. Introduce the needle in the midline and push it forward and a little upward for the distance of from one-half to three inches' depending on the muscular develop- ment and age of the patient. When the needle enters the canal the cerebro- spinal fluid will flow out. Allow as much, or a little more of the spinal fluid to escape - if it will - than the amount of antitoxin to be injected. The antitoxin warmed to body temperature should be allowed to enter the canal by gravity by means of a funnel with a one-eighth to one-fourth inch dia- meter tube 12 inches long or an ordinary rubber catheter attached to the barrel of a glass syringe - the other end cut off for the attachment of the needle. Aseptic precautions. The skin over the selected regions should be thor- oughly cleansed with soap and water and then washed with alcohol or painted with tincture of iodine. The apparatus should be thoroughly sterilized by boiling for five minutes. When doses are given intravenously or into the nervous system, a strictly aseptic surgical technique should be observed. Report Required From Physicians Using State Tetanus Antitoxin By accepting antitoxins and serums prepared and distributed by the Depart- ment of Health, the physician assumes responsibility for reporting upon their use (Front) Patient Report on the Use of Tetanus Antitoxin Address N. Y. Age .Sex. Date of injury. Location and character of injury. 90 Dirt or foreign bodies in wound. To be returned to health officer or Division of Laboratories and Research, New Scotland Ave., Albany. Surgical Treatment (Back) Dates and Hours of Injections Prophy- lactic Thera- peutic Units Injected Antitoxin Number Methods of administration (subcutaneous, intraspinous, intra- venous) Date._ Development'of tetanus within three weeks.. Termination of^case (recovery or death).. Date.. Address. M. D. Retain all report slips until expiration of three weeks period, or termination of case. Tuberculosis Examination of specimens Lacking specific curative and immunizing agencies in the treat- ment of tuberculosis, the early diagnosis of the disease is the essential factor upon which depends the care of the individual case and the prevention of the spread of the disease. In com- paratively few diseases is the bacterial diagnosis of greater prac- tical value to the physician and public health official. The find- ing of the tubercle bacillus in discharges leaves no question regard- ing the diagnosis. The tubercle bacillus is not found in the discharges of healthy persons. In suspected cases the examina- tion of discharge is, therefore, essential. The routine public health examination of such discharges is to a large extent limited to the examination of sputum, but the practical value of examin- ing other discharges is also manifest, although the great majority of tubercular infections are pulmonary, and from cases of pul- monary infection the spread of the disease is very largely confined. While the demonstration of the presence of tubercle bacilli is of positive value, failure to find the organisms in any case does not preclude the existence of tuberculosis. In cases of pul- Negative find- ings not con- clusive 91 monary' tuberculosis it may not be possible to find the organisms in specimens of sputum until the disease is at least moderately advanced. In such cases, while successive specimens should be submitted for examination the diagnosis should not be delayed pending finding, but should usually be made from symptoms and physical signs. Specimens of Sputum Outfits for the examination of sputum specimens have been distributed throughout the State. The special outfit with yellow label for sputum includes a container and information blank with directions for collecting specimens, which are as follows: Form Used for Submitting Information Accompanying Specimens of Sputum to be Examined for Presence of Tubercle Bacilli (not to be Used with Specimen for Pneumococcus Type Differentiation) (Front) Examination of Sputum for Tubercle Bacilli Only TUBERCULOSIS (See other side for explanation and directions for collecting specimens of sputum.) Number of specimens from this patient, 1, 2, 3, 4, 5, 6, 7, etc Results of previous examinations. Date of collecting specimens Time Name of patient. Address. Age. Sex Occupation Clinical diagnosis Color Duration of disease. Symptoms (cross out those not observed) Fever, sweats, cough, loss of appetite, pulse rate.... ; hoarseness, emaciation, diarrhea, hemorrhage How contracted Other information concerning specimen. Name and address of physician Name and address of health officer whom was this specimen taken?. Physicians are requested to answer all questions on the blank up to this point and return it with the specimen. Laboratory number Received Examined. Examiner Result of examination 92 CAUTION (Back) Send only specimens of sputum to be examined for tubercle bacilli in this container, as the specimens for this test are to be sterilized before they are examined and this procedure would render a specimen unsatisfactory for most other tests. If any other type of examination is desired, the specimen may be sent in a similar container with a pink label designed for specimens for mis- cellaneous examinations. Sputum should be collected in the special jars designed for this purpose. These are furnished in complete outfits for mailing by the State Department of Health free of charge to health officers and physicians. The specimen jar should be labeled with the name of the patient. The first sputum coughed up in the morning is preferred. When the sputum is scanty it should be collected for twenty-four hours. The tubercle bacilli are found most frequently during exacerbation of the disease and in purulent or cheesy sputa; less often, in pure mucus and blood. Following hemorrhage the purulent material should be selected for examination. Do not fill the jar more than three-quarters full. Cork securely to avoid leakage. The diagnostic facilities of the laboratory are designed primarily to render prompt assistance to health officers and physicians in the diagnosis and con- trol of communicable diseases and to provide laboratory service for all persons in the State for whom such service is not otherwise available. Physicians are especially urged to make use of the facilities of approved county, municipal and private laboratories whenever such facilities are avail- able in their vicinity. DIRECTIONS FOR THE COLLECTION OF SPUTUM Form Used for Reporting Presence of Tubercle Bacilli in Specimens of Sputum Laboratory number , 19 In the examination of the sputum from Name Address Date collected For or by Dr. Tubercle bacilli were found. AUGUSTUS B. WADSWORTH, M. D. Director Dr. Health Officer (See other side) (Front) 93 (Back) § 32o. Reports of tuberculosis by physicians and. others. Tuberculosis is hereby declared to be an infectious and communicable disease, dangerous to the public health. It shall be the duty of every physician in the state of New York, to report by telephone or in person or in writing on a form to be furnished as hereinafter provided, the name and address, of every person known by said physicians to have tuberculosis, to the health officer of the city, town or village in which said person resides or may be, within twenty- four hours after such fact comes to the knowledge of said physician. It shall also be the duty of the chief officer having charge for the time being of any hospital, dispensary, asylum or other similar private or public institu- tion to report the name, age, sex, color, occupation, place where last employed if known and the previous address of every patient having tuberculosis who comes into his care or under his observation, within twenty-four hours there- after to the health officer of the city, town or village in which said patient resided immediately previous to admission to said institution; except that if such residence be outside of the state of New York then such report shall be made to the state commissioner of health. Any physician, nurse, employer, teacher, head of a family, landlord, or other person may report in writing the name and address of any person coming under his observation who appears to be suffering from tuberculosis to the health officer of the city, town or village in which such person is, and the health officer shall thereupon take such steps as may be prescribed by the sanitary code provided the person making such report signs his own name and address thereon. Each registrar of vital statistics shall promptly report to the health officer the name and address of every person reported to him as having died from tuberculosis. The health officer shall ascertain whether such person has been previously reported as having tuberculosis by the physician signing the death certificate, and if it appears that such physician has not so reported such person, the health officer shall call the attention of such physician to the provisions of this section. In case of repeated violations of the provisions of this section by any physician the health officer shall report such repeated violations to the board of health or other local health authorities, who shall cause such steps to be taken as may be necessary to enforce the penalty provided for such violation. § 322. Protection of records. It shall be the duty of every health officer of a city, town or village to cause all reports made in accordance with the provisions of section three hundred and twenty, and also all results of examinations, showing the presence of the bacilli of tuberculosis, made in accordance with the provisions of section three hundred and twenty-one, to be recorded in a register, of which he shall be the custodian. Such register shall not be open to inspection by any person other than the health authorities of the state and of the said city, town or village, and said health authorities shall not permit any such report or record to be divulged so as to disclose the identity of the person to whom it relates, except as may be authorized in the sanitary code. PUBLIC HEALTH LAW 94 SANITARY CODE Regulation 42. Duties of physicians and other persons concerning tuberculosis* It shall be the duty of every physician or other person required to perform any duty under sections three hundred and twenty to three hundred and thirty, both inclusive, of article sixteen of the public health law, providing for the reporting and control of cases of tuberculosis to take all steps incum- bent on him and necessary to carry into effect the provisions of the said law. Chapter II Form Used for Reporting Negative Results in Examina- tion of Specimens of Sputum for Presence of Tubercle Bacilli , 19 Laboratory number In the examination of the sputum from Name Address Date collected For or by Dr. No tubercle bacilli were found. Failure to find the tubercle bacillus does not exclude the presence of tuber- culosis. In all doubtful cases specimens for confirmatory examinations should, be carefully selected and forwarded. Even though the sputum be negative, if, because of the clinical findings, you regard this case as one of tuberculosis it should be reported to the local health officer. There are cases of early or incipient tuberculosis and less frequently cases in more advanced stages which require several examinations of the sputum before tubercle bacilli are found microscopically. During exacerbations of the disease the bacilli are usually present in greater numbers. AUGUSTUS B. WADSWORTH, M. D., Director Dr. Health Officer Specimens Other Than Sputum Discharges Outfits for miscellaneous specimens may be used for the col- lection of other discharges for examination in the laboratory. These outfits consist of slides upon which smears of the exudates may be spread if the tubercle bacilli are likely to be numerous,, and another miscellaneous outfit with pink label containing a 95 sterile tube and swab may be used for the collection of discharges and exudates, or even for smaller quantities of fluid, although the sputum jar would serve better for this purpose. In serous exudates, and in urine, tubercle bacilli are not numerous, and larger specimens must be sent so that specimens may be centrifugalized and examined by direct microscopic examination, or if necessary so that the inoculation of guinea pigs, an animal susceptible to the disease, may be made. The inoculation test requires five to eight weeks. It should always be borne in mind that in specimens of material from tubercular subjects the number of tubercle bacilli vary so greatly from time to time that they are not infrequently missed in one examination. Repeated examinations are necessary. Serous exudates and urine Reporting of Cases Health officers should report all cases of tuberculosis as required by law. For administrative reasons the submission of a labora- tory specimen and information regarding it does not constitute a case report. Tuberculin From time to time small quantities of old tuberculin - Koch's O. T. or crude tuberculin - are prepared by the Albany labora- tory for diagnostic use but this product is not distributed gen- erally. Tuberculin may be used on the scarified skin by the method of von Pirquet, or in dilutions injected intracutaneously (Mantoux) or subcutaneously (Koch). The last method, how- ever, in persons having active tuberculous lesions may be open to considerable danger through excessive reaction. The intra- cutaneous method is considered more delicate than that of von Pirquet. Tuberculin tests should be made only by experienced physicians and the results should not be considered as diagnostic unless carefully interpreted in the light of considerable practical experience of the tests. The following directions for uses of tuberculin are included in a circular issued by the Division of Laboratory and Research: Not generally distributed Cutaneous Method of von Pirquet Cleanse inner surface of left forearm with alcohol and ether. Make two small scarifications *4 inch long and about 3 inches apart, without drawing Tuberculin tests as diagnostic aids 96 blood. On one scarification place one drop of undiluted tuberculin with a sterile needle or toothpick and allow it to dry. The second scarification acts as a control. Examine areas at the end of 12, 24 and 36 hours. The inflammatory reac- tion develops where the tuberculin was placed and should be distinct from any traumatic reaction as shown by the control area. Dilute the tuberculin with sterile physiological salt solution (1-10,000, 1-100,000, 1-1,000,000, 1-10,000,000). Cleanse the inner surface of the left forearm with alcohol and ether. Holding the skin taut and using separate sterile tuberculin syringes and needles for each dilution inject into the skin (not subcutaneously) 0.1 cc. of each dilution of tuberculin. As a control for skin sensitiveness 0.1 cc. of sterile salt solution is injected similarly into a fifth area, noting well its relative position. A fine needle, preferably No. 26 gauge, should be used and syringes and needles boiled up separately after use. The reaction is considered positive and possibly of diagnostic significance when an infiltration and hyperemia develops at the site of injection in 6-8 hours, reaching a maximum in 24-48 hours and disappearing in 6-10 days. The control injection of salt solution may be followed by a definite traumatic reaction which however rapidly disappears after 24 hours. Intracutaneous Method of Mantoux Caution. The subcutaneous method should only be used with the greatest care and should be limited to cases without definite pulmonary lesions and to cases with inactive healed lesions. Extensive or definite pulmonary tuber- culosis should always be excluded by the x-ray examination of the lungs. Dilute the tuberculin with sterile physiological salt solution to which has been added 0.25% of pure carbolic acid (2.5 cc. of carbolic acid in 1,000 cc. of salt solution) to 1-10, 1-100, 1-1,000, 1-10,000, 1-100,000, etc. It is custom- ary to designate the dose of tuberculin in grams and milligrams, while the dilutions are made by liquid measurement. To administer one milligram, give 0.1 cc. of 1-100 dilution; 5 milligrams, 0.5 cc. of 1-100 dilution, etc. Pipettes, bottles and syringes should be sterile. The injections are made subcutaneously into any part of the body, but the region of the back below the angle of the scapula is the desirable situation. Often the arm will be found more convenient. A No. 23 gauge needle is used and syringe and needles should be boiled before use, and care should be taken that tuberculin dilutions remain sterile. The skin at the site of inoculation should be cleansed with iodine and alcohol. Reaction. Careful observations and records of subjective symptoms and objective signs of the disease together with the temperature are made pre- vious to the test for purposes of comparison, and an afebrile period should be selected. Body temperature is considered the most trustworthy index of the constitutional reaction and it is indispensable to have a correct record of its variations. In hospitals the temperature may be taken every two hours throughout the period of the test. Ambulatory eases must be instructed in taking temperatures. The average temperature reaction develops in 12 hours Subcutaneous Method 97 reaching a maximum between 12 and 24 hours. Therefore, the injections should be given during the early morning hours or late in the evening. References. For full discussion of the tuberculin test in diagnosis of tuber- culosis, see Hamman and Wolman, Tuberculin in Diagnosis and Treatment, 1912, Appleton Company. Typhoid and Paratyphoid Fever The early diagnosis of typhoid fever by clinical or laboratory methods is important bnt often difficult. Clinical methods are inaccurate. Many laboratory methods are not of value until after the disease has become well established. Cultural examina- tion of the blood for the presence of the typhoid bacillus is the only practical method in the very earliest stages of the disease. This is a difficult procedure and not always satisfactory. The examination of the blood by the method of Widal to determine its agglutinability with the typhoid bacillus is of value after the first week or ten days of the disease. The appearance of this agglutinability varies in different cases; it may be con- siderably delayed. Previous treatment with typhoid vaccine may develop agglu- tinins in the blood thus obscuring the results of the diagnostic procedure for typhoid fever; but, if a person has been treated with typhoid vaccine and as a result of that treatment the blood serum agglutinates the typhoid bacillus at the time the examina- tion for diagnosis is made, it is probable that sufficient immunity will be present in the tissues to prevent the development of the disease. It is not improbable that some of the cases reputed to have been typhoid fever developing in vaccinated persons were not typhoid fever, and that the error in diagnosis was due to the presence of agglutinins. It should be borne in mind that the agglutination reaction in typhoid fever is simply the development of a property of the blood normally present in health, and thus in degree only significant in diagnosis. The examination of feces in cases of typhoid fever is an extremely important procedure not only in the diagnosis of the disease, but in the detection of carriers of the disease. In the diagnostic 'examination of the feces the presence of the typhoid 4 Diagnosis of typhoid fevei Agglutina- tion reaction Examination of fecal specimens 98 bacillus leaves no question about the nature of the disease. It is only in the later weeks and during convalescence that the typhoid bacilli appear and persist in the feces. During convalescence they are likely to be discharged intermittently so that frequent examination is necessary. The presence of typhoid bacilli in the feces of cases after three months of convalescence suggests a permanent carrier state, and such persons should be kept under observation, reporting for examination at intervals. Typhoid bacilli have been found in the urine in approximately 25 per cent of cases of the disease. The examination of urine for these organisms is seldom of value before three weeks after the onset of the disease and is therefore more practical from a hygienic than a diagnostic standpoint. The bacilli may persist in the urine far into convalescence. In most instances where typhoid bacilli are found in urine, albumin is present in consider- able quantities. The bacilli usually appear and disappear with the albuminuria. Paratyphoid fever resembles typhoid fever so closely that laboratory examinations alone establish differential diagnosis. Agglutination of the blood serum in cases of paratyphoid fever may not be so marked as similar agglutinations with the blood serum of typhoid patients. The Widal reaction, therefore, may not be so definitely diagnostic. During the acute stages of the disease the blood culture often contains the bacilli which can be identified readily by cultural reactions. From specimens of feces the para- typhoid bacilli are isolated by methods similar to those used in the examination for typhoid bacilli. The methods of isolation and care of the patient and of convalescent and permanent car- riers correspond closely to those necessary in the care of the typhoid fever patient. Typhoid bacilli in urine Paratyphoid fever Collection of material Two outfits are distributed by the department, one for the col- lection of specimens of feces, blood and urine for the isolation of typhoid and paratyphoid bacilli, and one for the collection of blood for the agglutination test. Both of these outfits contain green information blanks with directions for the use of the outfit. When the physician submitting a specimen is in doubt as to Laboratory Specimens 99 whether he is dealing with a case of typhoid or one of paratyphoid fever, he should make this fact known at the time of submitting the specimen, in order that agglutination tests may be made for both diseases. It is also more convenient for the laboratory workers if physicians would indicate at the top of the slip whether specimens of feces, blood or urine are being submitted by cross- ing out the words not applying to the specimen submitted. Form Used in Submitting Information Accompanying Specimens From Cases of Suspected Typhoid, Para- typhoid or Dysentery (Front) Examination of Feces or Blood, or Urine (See directions for collecting specimens on other side.) ENTERIC DISEASES Number of specimen from this patient 1, 2, 3, 4, 5, etc. Results of previous examinations: Stool. Widal Date of collecting specimen Urine Blood culture Time Address Name of patient Age . Sex Occupation Color Clinical diagnosis Time resident in present locality Absences Duration of disease. How contracted Has patient previously had typhoid or paratyphoid fever, or bacillary dysen- tery? When ? Has patient had vaccines? What? When? Symptoms (strike out those not observed) . Fever, nosebleed, rose spots, diarrhea, bloody stools, delirium, tenderness right iliac region, gurgling, palpable spleen, bronchitis, chills, sweating. Other information concerning specimen Name and address of physician Name and address of health officer By whom was this specimen taken? Physicians are requested to answer all questions on the blank up to this point and return it with the specimen. Laboratory number Examined Received Result of examination. Examiner 100 Directions for Collecting Specimens of Feces (Back) With the enclosed swab emulsify in the glycerine (10 cc. of 30% glycerine) a bit of the feces the size of a pea. Specimens of feces are more satisfactory for examination if fluid. If the clinical conditions warrant it may be advisable to give a cathartic before the specimen is collected. After the specimen has been transferred to the tube of dilute gylcerine burn the swab. Stopper tube tightly and pack carefully. Label tube with name of patient. Fill out the information blank and mail it with the specimen to the State Laboratory, New Scotland Avenue, Albany, N. Y. Directions for Collecting Specimens of Urine The feces outfit containing glycerine (10 cc. of 30% glycerine) may be used. Soak swab in urine that has been secured in as aseptic a man- ner as possible. Stir swab in glycerine. Burn the swab. Stopper tightly and pack securely. Label tube with name of patient. Fill out the information blank and mail it with the specimen to the State Laboratory, New Scotland Avenue, Albany, N. Y. Directions for Taking Specimens of Blood For Widal Test: Cleanse lobe of ear with soap and hot water. Rub lobe with a clean towel wet with alcohol. Prick lobe with sharp surgical needle and manipulate to secure free flow of blood. Allow one drop of blood to fall into the hollow of each aluminum plate. Allow this to dry in the air without heating it. Place the aluminum plates face to face in the small envelope. Label envelope with name of patient. Fill out the information blank and mail it with the Specimen to the State Laboratory, New Scot- land Avenue, Albany, N. Y. For Blood Culture: Cleanse lobe of ear as described above. Allow 10 drops of blood to fall into the tube of glycerine. Stopper tube tightly and pack carefully. Label tube with name of patient. Fill out information blank and mail it with the speci- men to the State Laboratory, New Scotland Avenue, Albanyr N- Y. 101 Form Used in Reporting Presence of B. Typhosus, B. Para- typhosus or B. Dysenteriae in Specimens of Excreta , 19 Laboratory number In the specimen of feces from Name Address Taken on For or by Dr. B. typhosus B. paratyphosus B. dysenteriae were found. AUGUSTUS B. WADSWORTH, M. D. Director Dr. Health Officer Form Used in Reporting Negative Results of Examination of Specimens of Excreta for Presence of B. Typhosus, B. Paratyphosus and B. Dysenteriae . 19 Laboratory number In the specimen of feces from Name Address Taken on For or by . . Dr. B. typhosus B. paratyphosus B. dysenteriae were not found. Failure to find the bacilli of enteric disease in the feces does not necessarily exclude infection. The bacilli may be present in such small numbers that they could not be isolated. In all doubtful cases specimens of feces and urine should be sent for confirmatory examination, especially from convalescents and carriers. Specimens of feces are more satisfactory for examination if fluid. AUGUSTUS B. WADSWORTH, M. D. Director Dr. Health Officer 102 Form Used for Reporting Presence of Agglutination Reaction in Blood From Cases of Suspected Typhoid Fever , 19 Laboratory number The specimen of blood from Name Address Taken on For or by Dr. Gives the characteristic agglutination reaction with the typhoid bacillus. If the clinical manifestations are also typical the disease may be considered typhoid fever. If there are no other symptoms of typhoid fever and if typhoid vaccines have not been recently administered, the case may be a " carrier." Specimens of the feces and urine should be forwarded for special examination. Specimens of feces are more satisfactory for examination if fluid. AUGUSTUS B. WADSWORTH, M. D. Director Dr. Health Officer Form Used in Reporting Negative Results in Tests for Agglutination with Typhoid Bacilli , 19 Laboratory number The specimen of blood from Name Address Taken on For or by Dr. Does not give the characteristic agglutination reaction with the typhoid bacillus. A comparatively small percentage of the cases of typhoid fever react typi- cally during the first week. During and after the third week of the disease only a comparatively small percentage fail to react. The absence of a positive reaction does not exclude typhoid infection. In all doubtful cases, specimens for confirmatory examination should, be for- warded at once. It is advisable, also, to send specimens of feces and urine for special examination. Specimens of feces are more satisfactory for examination if fluid. AUGUSTUS B. WADSWORTH, M. D. Director Dr. Health Officer 103 Vaccination Against Typhoid and Paratyphoid Fever The administration of typhoid vaccine has proved to be an effective preventive against typhoid fever under ordinary condi- tions. Experience in the army, however, has demonstrated that it should not be expected to give absolute protection when other ordinary precautions are neglected. The immunity produced may not be sufficient to protect against repeated and massive doses of the infective agent. Beside a typhoid vaccine the department prepares a combined typhoid and paratyphoid vaccine, which is now very generally used. While the combined vaccine contains more bacteria, results indicate that the reactions from its use are but little more frequent or pronounced. The vaccines are not recommended as therapeutic agents to be used after the disease has developed. They should be kept in the cold. After six months the vaccines deteriorate and should be returned to the laboratory with other supplies semi-annually (January and July). The following directions for use of typhoid and paratyphoid vaccine appear in a circular issued by the Division of Laboratories and Research: TyphoK Typhoid-pan- typhoid vaceina The vaccine is injected with a sterile hypodermic syringe not too deeply into the subcutaneous tissues - usually over the insertion of the deltoid. The site of inoculation should be cleansed with soap and watex- and disinfected with alcohol or by the application of tincture of iodine. Three doses are usually administered at intervals of seven to ten days. For the first dose the number of dead bacilli is one-half that of the second and third doses. Although the dosage should not exceed the standard amounts given below in ordei' to reduce the severity of the reactions occasionally induced by the inoculation, slightly smaller doses may be given. If the dose is materially reduced, however, the number of inoculations should be corre- spondingly increased. The dosage for children should be reduced in propor- tion to the body weight as compared with that of an adult. In the treatment of carriers it is recommended that the treatment be continued for some time,, the dosage being gradually increased. The reaction induced by the vaccines varies; it may be practically negli- gible but usually consists of localized congestion with redness, swelling and tenderness. These local reactions may be accompanied by varying degrees of systemic disturbance, general malaise and fever. Pronounced systemic reactions are, however, rare and are transitory in character. It is advisable to give the inoculations late in the afternoon so that if a reaction occurs it 104 will be at night. During the menstrual period and in case of illness, the injections should be postponed. Typhoid vaccine is prepared for distribution in outfits containing three separate doses for the immunization of one person, and in bottles containing 10 cc. for the immunization of a number of persons at one time. Each cubic centimeter contains 1000 million dead bacilli. Typhoid-paratyphoid vaccine is also distributed in individual immunizing sets and in bottles containing 10 cc. of dead bacilli. Each cubic centimeter contains 1000 million typhoid bacilli and 750 million each of paratyphoid A and B. Initial dose (for adults) Typhoid vaccine 500 million bacilli (0.5 cc.) Typhoid-paratyphoid vaccine 1250 million bacilli (0.5 cc.) Second and third doses Typhoid vaccine 1000 million bacilli (1 cc.) Typhoid-paratyphoid vaccine 2500 million bacilli (1 cc.) The bottles should always be carefully shaken to make sure that when the doses are divided the sediment is suspended evenly in the solution. procedure of Recording and Reporting the Results of Laboratory Examinations iraportasce Iii a large laboratory the clerical procedure of recording the receipt of specimens and reporting the result of their examination becomes a complex problem of the utmost importance. Unless the greatest care is taken errors are certain to occur. Every labora- tory should keep an accession book in which every specimen should be recorded as soon as it is received. A system of numbering the specimens, keeping the original records of the examinations, send- ing the reports and checking against error is also essential in a well conducted laboratory. Every step in the work must be initiated by the worker in order to fix responsibility and trace errors if they occur. In the central laboratory in Albany, the procedure has been very carefully developed as a result of practical experience, and is essentially as described below. Stained specimen slides, after examination, are indexed and filed for future reference. Accession books are kept in the laboratory for the purpose of recording the receipt of every speci- 105 men, and when the examinations have been made, the results are also recorded in these books - thus safeguarding against the loss or misplacement of any specimen in the laboratory. All specimens are examined and reported as promptly as possible after their receipt. With the exception of miscellaneous examinations, reports are sent to the physician sending in the specimen and to the health officer of the district in which the patient lives. Reports on miscellaneous examinations are sent to the health officer only on his special request and when they have reference to communicable diseases. Reports are not given to any- one except the physician sending in the specimen and to the health officer. Laboratory specimens arriving through the mails at night are collected periodically during the night and those requiring in- cubation are paced immediately in the incubators, in order that they may be ready for examination at the earliest possible moment on the following day. Physicians should send the specimens in the type of mailing case designed for them or indicate plainly on the outside of the mailing case the kind of specimen being sent, since it has not been thought advisable to allow the night watch- men to open the containers for fear the specimens might become mixed. Specimens from suspected cases of acute communicable diseases (tyhoid and paratyphoid, dysentery, diphtheria, etc.) received or becoming ready for examination (following incuba- tion) on Saturday afternoons, Sundays, and holidays, are ex- amined and reported upon immediately. When a first culture for the diagnosis of diphtheria is positive and apparently no antitoxin has been administered, a telegram is sent both to the attending physician and health officer, unless otherwise specifically directed on the information blank, in which case a telegram is sent only to the health officer; also when the information blank does not state whether or not antitoxin has been administered, telegrams are sent in the same way (cultures clearly marked for release are not considered primary cultures even though they may be the first culture sent to the laboratory). When physicians indicate on the history blank that the diag- nosis has been made and the culture sent to confirm diagnosis, telegrams are not sent. Mail report* Immediate attention to specimens Telegraphic reports 106 When a telephonic report is requested on an information blank accompanying a specimen from any place outside of Albany or Rensselaer a telegram is sent instead, in order to save time and expense. All reports by telegraph and telephone are sent " col- lect," as the State has not provided an appropriation for this purpose. Complaints Regarding Service Constructive criticisms welcomed Health officers who have encountered apparently unnecessary delays in receiving laboratory supplies or reports upon diagnostic specimens, or who feel that they are not receiving satisfactory service, are urged to submit complaints to their sanitary super- visors or directly to the laboratory. All complaints received will be investigated and, so far as practicable, the health officers will be advised of the results. Constructive criticisms will be gladly received and will be given careful consideration. Distribution of Laboratory Supplies* To whom shipped Ordinarily supplies are sent to health officers, institutions and hospitals only. Physicians, nurses and laymen asking for sup- plies are referred to their health officers. If the records show that the health officer has not a sufficient stock on hand from which to fill the order, he is sent a supply with an explanatory letter. In order to insure prompt service and to reduce the possibili- ties of errors, all requests for supplies should be sent without exception directly to the Division of Laboratories and Research. Health officers on Long Island and in Westchester and Loch- land counties should obtain their supplies from the Branch Laboratory, New York State Department of Health, 338 East 26th street, New York city. Any shipments made from the State laboratory at Albany to health officers in these districts contain labels addressed to the branch laboratory. When ordering supplies health officers should use Form No. 42, "Report on Laboratory Supplies." These forms may be obtained from the laboratory on request. (See page 109) Requisition should invariably state the exact amounts of each supply required. District served by branch laboratory Requisitions for supplies * See "Distribution of Laboratory Supplies, under New Law," p. Ill 107 Laboratory supplies requested by health officers are sent within twenty-four hours of the receipt of orders, except when after January 1 and July 1 the orders are received in such large numbers that a delay of a few days is unavoidable. Telephonic and telegraphic orders are, so far as possible, shipped on the first express train leaving Albany after the receipt of the order. Supplies are given to health officers and other physicians call- ing at the laboratory, or sending properly accredited messengers. As applied to physicians who are not health officers, however, this is a matter of accommodation as it is preferred that they obtain their supplies from their health officers. Owing to the time and outlay required in the preparation of antitoxin and vaccine and the very large amount of unused and outdated material returned by health officers each year, it has seemed advisable to fill routine stock orders with some reference to the population to be served. In order to encourage the sending of further specimens a sputum container is sent to every physician (who is not a health officer), sending in a specimen of sputum which proves on examination to be negative. Certain supplies should be exchanged periodically, in accord- ance with the rules and regulations for supply stations. All perishable supplies, as they become outdated or old, should be returned to the laboratory and new material requisitioned. Exchange of supplies should be so arranged that the health officer will at no time be without sufficient supplies to provide for pos- sible emergencies. Health officers are required to sign and return for the labora- tory files the Rules and Regulations for Supply Stations which follow: Orders by mail, tele- phone, or telegraph Orders by messenger Population considered. Sputum con- tainers to physicians Return of old supplies Supply station agreement Rules and Regulations foe Laboratory Supply Stations * The term " Laboratory Supply Station " applies to any place, including the office or place of residence of the health officer, at which supplies furnished by the Division of Laboratories and Research are kept for distribution. In cities or districts in which it is not convenient for all physicians to secure supplies from one center, the health officer may, with the approval of the director of the laboratory, establish substations. When doing so, however, the health officer will be expected to assume full responsibility for the condi- * Attention is called to the fact that the following are not the rules and regulations referred to in chap. 620, Laws of 1920 (page 112). 108 tions under which supplies are kept and to account for them periodically. A list of all substations shall be kept at the laboratory in Albany, which should be notified promptly of changes. It is important, from the standpoint of the protection of public health, that supplies be always adequate, easily available and in usable condition. In view of the cost and amount of materials used, economy is also an import- ant consideration. For the foregoing reasons, the department feels justified in requiring health officers in charge of supply stations to maintain proper standards and to comply with certain reasonable requirements: 1. All supplies must be kept where they will be accessible to physicians at all times. Arrangements should be made so that, in the absence of the health officer, they may be dispensed by some other competent person designated for the purpose. 2. Antitoxins, serums, vaccines, culture media and other perishable products should be kept in an ice chest. If this is impossible they should be kept in a cold dark place in a cellar.* They should never be kept at ordinary room temperature. 3. Antitoxins and serums should be exchanged annually, or one year from date of test recorded on the label. Typhoid, paratyphoid and other bacterial vaccines should be exchanged half-yearly, or six months from date of preparation recorded on the label. All products bearing expiration dates should be exchanged on or before such dates. Culture tubes should not be used if the medium is contaminated or liquefied or after it has dried or separated from the sides of the tube. 4. Tubes containing culture medium should be inspected periodically (once in two or three weeks), and any unfit for use set aside to be returned to the laboratory at Albany. 5. The various therapeutic and preventive products are distributed for the treatment or immunization of inmates of State or charitable institu- tions and residents of the State unable to procure the remedy or to whom the purchase of it would be a hardship. These preparations may also be used in any emergency in which their use is likely to conserve life or health. 6. Laboratory supplies distributed by the State are not to be sold under any circumstances. A violation of the above rule will subject the violator to the penalty prescribed by section 1740 of the penal code, which is as follows: "A person who wilfully violates any provision of the health laws, or any regulation lawfully made or established by any public officer or board under authority of the health laws, the punishment for violating which is not otherwise prescribed by those laws, or by this code, is punishable by imprisonment not exceeding one year or a fine not exceeding two thousand dollars, or by both." 7. Laboratory supplies will be shipped, express charges collect. Sup- plies returned for exchange or specimens forwarded to the laboratory should be sent prepaid by express or by mail. * For convenience of health officers and others maintaining supply stations, the department has arranged with the Prison Department to furnish tin boxes in two sizes:-Size (10 x 10 x 8) at a cost of $1.10; size B (15% x 10 x 8) at a cost of $1.25. These boxes are painted white and marked " New York State Department of Health Supply Station." Send orders and remittances to " Warden Clinton Prison, Dannemora, N. Y." 109 8. All specimens for examination should be mailed in time for the first outgoing mail. 9. In ordering supplies, form No. 42 should always be used. In emergencies, telephone or telegraph and follow with the requisition form, which should be marked " Confirmatory." Order only such quantities as are likely to be used, with reasonable allowance for emergencies. 10. Physicians, by accepting antitoxins, serums and other specified products, assume the obligation to report on the use of such preparations on the special form accompanying each package. These report forms should be filled out completely by the physician and returned by him directly to the State laboratory at Albany, or to the health officer, who should return such reports to the laboratory when ordering supplies or with the semi-annual report. 11. The health officer, or person in charge of a supply station, should file a report with the Director of the Division of Laboratories and Re- search on the first of January and July of each year, using form No. 42. 12. Any infringement of these rules and regulations may be considered sufficient reason for the removal of the Station. I hereby agree to make every reasonable effort to comply with and to carry out the foregoing requirements, thereby cooperating with the State Depart- ment of Health in promoting effective distribution and use of laboratory sup- plies in my district. Date. Name. Address. Sanitary District. Report on Laboratory Supplies .19. Town Village of. County of City Population Served by Supply Station. P. 0. Address The following shows the supplies on hand and the number of each needed: Diagnostic Outfits for Mailing Specimens: (Each outfit is designated by a color scheme and appropriate symbols on outside wrapper.) On Hand Needed Diphtheria, serum culture tube (blue label)-D (Specify with or without mailing cases) Typhoid fever, (feces) tubes containing glycerine (green label)-T Typhoid fever, (Widal) aluminum plates (green blank)-T [ Wassermann test Syphilis -J Outfit for blood serum }- (cherry red label)-V [ Sterile tube with needle J Gonorrhea, outfit containing slide (brown envelope)-V Tuberculosis, sputum jar..., (yellow label)-Tb 110 Miscellaneous, glass jar for specimens (pink label)-M Miscellaneous, sterile swab tube for culture material <Suptum should be sent in this outfit for the bacterial diagnosis of pneumonia.) Miscellaneous, outfit of slides... (pink envelope)-M (pink label)-M Therapeutic and Prophylactic Preparations: Diphtheria antitoxin 6000 units, therapeutic dose, bottles. 3000 units, therapeutic dose, bottles. 1000 units, prophylactic dose, bottles Tetanus antitoxin 20000 units, therapeutic dose, bottles 10000 units, therapeutic dose, bottles. 1500 units, prophylactic, dose, bottles. Ophthalmia neonatorum, silver nitrate, 1 per cent (combined dropper and container of 15 cc.) solution (outfit for two treatments) (Bacterial vaccines are sent only on special request and should not be kept in ■stock except in small quantities on account of deterioration.) Typhoid-paratyphoid vaccine (outfit for one person 3 doses) (bottles of 10 cc.) Typhoid vaccine (outfit for one person, 3 doses) (bottles of 10 cc.) Pertussis vaccine (outfit for one person, 3 doses) (bottles of 10 cc.) Outfits for the Schick test, diphtheria toxin-antitoxin mixture and tuberculin are sent only on special application. Antimeningococcus serum is distributed from main depots, and from the labora- tory in Albany directly on application by telegram. Antipneumococcus serum for the treatment of pneumonia Type I is distributed through laboratory centers and is in charge of designated health officers. Dysentery vaccine, together with antidysentery serum for the treatment of bacillary dysentery, will be distributed for the present only on special application. Arsphenamine is distributed in ampules containing 2.4 grams, 0.6 grams and 0.4 grams, for use in authorized clinics and institutions. Remarks I hereby certify that I have fulfilled all the conditions of my agreement with the Department, and further, that I have inspected all supply stations •established in my district. Health Officer Antitoxin (diphtheria and tetanus) should be exchanged at the end of a year: bacterial vaccines, antimeningococcus, antipneumococcus, and dysenterv serums every six months. 111 Physicians and health officers are urgently requested to notify the labora- tory of any delay in receiving supplies or reports on specimens, of any defects in the outfits, and to offer any suggestions concerning improvement in the laboratory service to any district. The diagnostic facilities of the laboratory are designed primarily to render prompt assistance to health officers and physicians in the diagnosis and con- trol of communicable diseases, and to provide laboratory service for all per- sons in the State for whom such service is not otherwise available. Physicians are especially urged to make use of the facilities of approved cou/nty, municipal and private laboratories whenever such facilities are avail- able in their vicinities. Distribution of Laboratory Supplies Under New Law From Health Officers' Bulletin Chapter 620, Laws of 1920, which is presented below in full,, authorizes the State Commissioner of Health to establish labora- tory supply station districts and to appoint a custodian in each such district who shall have charge of the distribution of labora- tory supplies through a central station. In the past the Division of Laboratories and Research has dis- tributed antitoxins, serums, vaccines and various diagnostic specimen outfits, furnished for the use of physicians, through local health officers and a few special stations in local labora- tories and hospitals. Many of the thousand or more local health officers require supplies in small quantities, which has necessi- tated a vast number of small shipments and a large amount of clerical work in accounting for shipments and supplies exchanged.- Since health officers have received no extra compensation for this- service, it has been difficult to enforce the Department's require- ments regarding conditions under which laboratory supplies should be kept. The result has been a serious waste of perishable products, prepared at considerable expense, and health officers unexpectedly called upon for culture tubes or antitoxins for use in emergencies have sometimes found their supplies so seriously determinated as to be unfit for use. The new law makes the following provisions which it is hoped' will correct some of these conditions: It authorizes the -State Department of Health to prescribe con- ditions under which supplies -shall be kept and provides for the payment of necessary expense of maintaining supplies under ironer conditions. 112 Custodians of district stations, appointed by the State Com- missioner of Health, are entitled to annual compensation, upon certification of the State Health Department that supplies have been maintained and distributed in accordance with its regulations. It authorizes the district custodian to designate necessary sub- stations in his district, subject to the approval of the State Depart- ment of Health. The law became effective when it was signed by Governor Smith on May 10; but since its operation involves a complete readjustment of procedure and many administrative details, and successful operation depends in large measure upon careful plan- ning of districts and wise selection of custodians, it will be some time before it will be fully operative * CHAPTER 620 AN ACT to amend the public health law, in relation to the establishment of district laboratory supply stations. Became a law May 10, 1920, with the approval of the Governor. Passed, three-fifths being present. The People of the State of New York, represented in Senate and Assembly, do enact as follows: Section 1. Article two of chapter forty-nine of the laws of nineteen hundred and nine, entitled "An act in relation to the public health, constituting chap- ter forty-five of the consolidated laws," is hereby amended by inserting therein a new section, to be known as section five, and to read as follows: § 5. Laboratory supply stations. The state commissioner of health may establish stations, to be known as district laboratory supply stations, for the distribution of laboratory supplies furnished by the state department of health. He may designate districts to be served by such district laboratory supply stations, each such district to include one or more municipalities. The term " municipality " as used in this article means a city, village, town or consolidated health district. The state commissioner of health may appoint the health officer of any municipality, the director or person in charge of any public health laboratory, or the director or person in charge of any health center, located in each such district, to serve as the custodian of the supply station thereof. The health officer or other person so appointed shall, with the approval of the state department of health, establish such sub- stations as may be necessary for the proper distribution of laboratory supplies to all physicians practicing in the district. Each district laboratory supply station and the substations thereof shall be maintained and operated in accord- ance with the rules and regulations of the state department of health and shall be subject at all times to inspection by authorized representatives of the *EstabIishment of district supply stations begun January 1, 1921. 113 state commissioner of health.- The state commissioner of health may at any time discontinue any district supply station or substation or rescind any appointment previously made under this act, when in his judgment or that of his authorized representative such action will be in • the interest of the public health. The custodian of each district laboratory supply station estab- lished and operated under this act shall, upon certification of the state depart- ment of health that he has maintained and operated such station and the sub- stations thereof in accordance with its prescribed rules and regulations, be entitled to receive annually the sum of twenty dollars in consideration of services rendered in the administration of such district laboratory supply station, together with the sum of ten dollars for each substation established and operated in accordance with the provisions of this article, and the actual and necessary expenses of operation and maintenance of the district labora- tory supply station and substations thereof, such sums to be a charge upon the municipalities included in such district, such charges to be distributed among the municipalities so included upon the basis of population in accord- ance with the last federal or state enumeration.* § 2. This act shall take effect immediately. The Collection of Samples of Water, Sewage and Ice for Bacterial and Chemical Examination The Department examines samples of water whenever the results of the examination are likely to be directly applicable to the prevention of disease and the protection of the public health. Samples from private wells are accepted for examination when accompanied by a statement of the results of a sanitary survey of such wells and their surroundings. (See form, page 125.) Bequests are numerous for examination of samples from wells on premises upon which single cases of typhoid fever have occurred. It should be borne in mind that the results of labora- tory examinations in such instances are of value only as they confirm previous epidemiological findings. The fact that a patient who has typhoid fever has used the water from a certain well in no sense proves that he thus received his infection, even though the water at the time of sampling may show evidences of fecal pollution. There is usually an interval of at least two weeks between the date upon which the patient receives his infec- tion and that upon which the sample is taken, with possibilities of material changes in conditions affecting the results of water When samples will be accepted Well water and typhoid * An endeavor will be made to secure an amendment making the fees and expenses, in districts including more than one municipality, county rather than municipal charges, with a view to simplifying administration. 114 analysis. Fecal pollution, if found, may be of animal origin. Whether the source is from man or domestic animals can be determined only through investigation of local conditions. If the water has been responsible for the transfer of the infectious agent, the latter must have been discharged by a case or carrier. Every effort should be made to discover this case or carrier, the result of water analysis being regarded as another li link " in the chain of evidence. The health officer, whenever a laboratory examination is desired in his investigation of a water supply within his juris- diction, should advise the sanitary supervisor of the district of the existing conditions together with his reasons for requesting' the examination of samples. The sanitary supervisor, if in his opinion the laboratory analysis is required, will then send the proper containers or ask that they be sent from the laboratory. Health officers and sanitary supervisors should state in their requests for containers the number of chemical samples and the number of bacterial samples they wish to take in the course of the investigation of the water supply. Whenever a large sample for chemical examination is taken one bacterial sample should also be taken at the same point in the supply, although other bacterial samples may also be taken from other points in the supply. All containers are to be sent by express collect and returned to the laboratory by express prepaid. On receiving the containers, the health officer should select the information blank descriptive of the water to be examined and answer all the questions relating to the conditions which he has found in his inspection. No samples will be examined in the laboratory the sources of which have not been so inspected that all the inquiries can be answered. Having completed his inspection and made his report of it on the information blanks, the health officer should take the necessary samples following explicitly all directions. The, laboratory examination determines the presence or absence of pollution at the time of the sampling. The field inspection determines the sources and the nature of the pollution and thus the significance of its presence or absence. Select proper card; either ground water (well, spring, infiltra- tion gallery), light green; or surface water, untreated (stream, Securing con- tainers Information required Inspection 115 pond or lake), pink; or treated water, blue. When, in describing a treated water', it is necessary to describe also the source of the raw water use two cards, one for the treated water and another for the raw water. After recording all data concerning the source of supply and the shipment of samples, the bacterial and chemical samples should be carefully marked and the markings recorded. For example: Samples are taken from each of several points in one system. Bacterial and chemical samples from the same point, marked with the same letter A, would therefore be taken from stream, tap or other point in the supply-A, as recorded on the descriptive card. Samples, bacterial or chemical, marked B from stream, tap or other point in the supply - B, as recorded on the descriptive card. The sources of chemical and bacterial samples taken from different points and marked with different letters would therefore be recorded after the corresponding letter on the descriptive card. Ground waters receive pollution, either from surface washings at the surface of the ground or from subsurface drainage through the soil or through fissures or channels in rocks. It is, therefore, necessary to inspect and record data descriptive of the well or spring or infiltration gallery as indicated on the card in order to show, first, whether or not the well is protected structurally from the access of pollution to it; and second, the nature and location of, and the drainage from, nearby sources of pollution. Surface waters receive pollution at different points from dif- ferent sources and through different tributaries. This pollution is altered by sedimentation, dilution, storage, and numerous other natural agencies. It is, therefore, necessary to record the num- ber, character, and size of the streams, ponds, or lakes, constitut- ing the supply, and the construction, capacity, and operation of storage reservoirs used in distributing the supply. Especially is it necessary to record, in so far as it is possible, complete data concerning the watershed and all probable sources of pollution and all safeguards against this pollution, as indicated on the card. Two cards are often required to record complete data concern- ing treated water supplies. In order that the raw water may be Description for identifica- tion Ground waters Surface waters Treated water supplies 116 fully described, it should be described independently, as an untreated supply, on the appropriate card. Different methods of purification and different combinations of these methods are used in the treatment of water; hence, all the data on the card will not be required in describing any one purification plant. But owing to the fact that the efficiency of any method of purification or combination of methods is wholly dependent upon the accuracy with which each step of the process is carried out, it is necessary to have all structural and operative details accurately recorded, as indicated on the card. The technical details of construction and operation must be obtained from experts in charge of the plant. Having recorded all of the data requested on the card descriptive of the particular water under investigation, any further information elicited in the course of the inspection regard- ing conditions liable to affect the sanitary quality of the water, together with any further explanatory diagrams, should be noted under " remarks " or on the blank card furnished for this purpose. Except for the instance above mentioned, when the raw water of a treated supply is described, it is only necessary to fill out one descriptive card for each source of supply. The dif- ferent samples, bacterial and chemical, coming from different points of a source of supply, can be identified by the different letters, A, B, C, D, etc., used to label the samples, the respective points at which these samples were taken being noted on the descriptive card. All the cards should be replaced in the inner envelope, which is addressed to the laboratory, and from which they were taken. This envelope should be tied securely to the box containing the samples for shipment. General observations Directions for Taking Samples of Water for Bacterial Analysis The small bottles for bacterial samples in the insulated con- tainer have all been sterilized. They should be handled with the greatest care to avoid contamination. If by accident a bottle should become contaminated or there is any suspicion of its having become contaminated it should be so marked and a fresh 117 bottle taken for the sample, leaving the contaminated bottle empty. The hands should be carefully washed and dried before taking the sample. Test the stopper to be sure that it is loose before removing the cloth. If necessary loosen it by gentle taps with a pocket knife or similai' object. Remove the cloth cover and loosen the edges of the tinfoil. Hold the bottle at or near the bottom with one hand and avoiding accidental pollution with the other remove the stopper still covered with the tinfoil. While collecting the sample be sure that the exposed stopper does not touch anything, that the neck of the bottle is not con- taminated by the hands and that the water does not flow over the hands into the bottle. The bottle should be tilled to within half an inch of the stopper, leaving only sufficient air space for expansion. Replace the stopper and the tinfoil, pressing it around the neck and tie the cloth securely. Label each sample A or B or C, etc., and be sure that the proper descriptions of these samples have been entered after the same letter on the green, pink or blue card on which is recorded the result of the inspection. (See pages 121-126.) Collection of Samples of Water Fig. 1 Fig. 2 Fig. 3 Figure 1. Loosening edges of tinfoil. Figure 2. Taking a sample from a tap. Note that the tinfoil is not removed from the stopper. Figure 3. Pressing tinfoil around neck of hottie after replac- ing the stopper. Return the bottles to their places in the case. The tin box should be filled with ice mixed with a little sawdust and covered tightly. 118 Special Precautions in Taking Samples from Different Sources Taps from which samples are to be taken should be located on a main which is in constant use and in no instance should a sample be taken from one placed on a dead end. The water should be allowed to run for ten minutes before the samples are taken. Wells should have at least five to ten pails of water pumped from them before the sample is taken.* In the absence of pumps when pails or buckets are used for taking samples they should be carefully cleaned, being careful not to touch their inner surface with the hands, and thoroughly rinsed with boiling water before they are used for this purpose. In ponds, reservoirs or streams the samples should be taken in a sufficient depth of water to avoid disturbing the sediment on the bottom or near the edges, or otherwise disturbing the conditions usually present. Grasping the bottle in the right hand near the bottom as above directed, plunge the bottle, mouth downward, well under the surface, keeping the hand on the downstream side of the bottle; then carry the bottle up stream under the surface and out of the water, all in one continuous motion. Great care should be taken to avoid having the water flow over the hand into the bottle and also to plunge the bottle quickly below the surface and remove it quickly to prevent any scum on the surface of the water from entering the bottle. In rapidly flowing water the- bottle may be allowed to fill, holding the neck up stream. In shallow waters the greatest care must be exercised to avoid dis- turbing the sediment. Directions for Taking Samples of Water for Chemical Analysis The large bottle for the chemical sample has been carefully cleaned and rinsed with distilled water, but it has not been sterilized. In selecting water for the sample precautions similar to those recommended for the collection of bacterial samples should be observed. The bottle should first be filled with the * If while pumping this water from a well there is any overflow or splash- ing of the water back into the well, this fact should be noted. 119 water to be collected and then emptied. The bottle should then be refilled for the sample, taking all precautions against the ■entrance of foreign material. The sample should be taken directly if possible without the use of a pail, dipper, funnel or other similar apparatus. When these are necessary they should be absolutely clean and thoroughly rinsed in the water which is to be sampled. The bottle should be filled to within two inches of the stopper, leaving only sufficient air space for expansion. The stopper* should be kept free from contamination as in tak- ing the bacterial samples and should be replaced after the sample has been taken. Finally the stopper and neck of the bottle should be covered with a piece of cloth and tied securely. The ends of the string may then be sealed but never seal the stopper. Label the bottle A or B or C, etc., and be sure that the proper descrip- tions of these samples have been entered after the same letter on the green, red or blue card on which is recorded the results of the inspection. Directions for Taking Samples of Sewage The procedure differs in no essential from that of taking samples of water except that it is necessary to have a composite sample for chemical analysis. To the large sample bottle add 10 cc. or one-third of an ounce of chloroform. This bottle, dur- ing sampling and shipment to the laboratory, should be kept iced. At least every four hours, or in special instances, every hour or two during a twenty-four hour period, four or eight ounces of sewage, depending upon the number of fractional samples taken, should be added to the large sample bottle containing the chloro- form. The total composite sample should not be less than two quarts. All fractional samples added to the composite sample should be of equal volume. For very accurate determinations the volume of the fractional sample should be proportional to the * If by accident the stopper or the bottle should become soiled the bottle should be emptied, marked " used " and returned to the laboratory, the sample being taken in a fresh bottle. 120 volume of sewage flowing at the time the fractional sample was taken, and so estimated; but this is rarely necessary and only when especially directed. All the precautions necessary to prevent the entrance of foreign material not actually present in the sewage, as described above for the collection of samples of water, must be observed. Samples of sewage for bacterial examination should not be sent to the laboratory except under special conditions, since this examination must be made very promptly if it is to be of any value. Directions for Taking Samples of Ice A cake of ice should be selected weighing about fifty pounds, but during the coldest weather a cake of twenty-five pounds will suffice. This should be packed with at least an equal bulk of sawdust in a box and forwarded to the laboratory. Cards for the description of ground water (green) or surface water (pink) or treated water (blue) should be used in recording the results of the field inspection of the water upon which the ice formed or from which it was made. Directions for the Shipment of Samples to the Laboratory Select through express routes and time the sampling to secure prompt shipment. Samples should reach the laboratory if possible within twenty- four hours after they have been taken and never later than forty- eight hours. Samples should be taken early in the week and not later than Thursday in order to avoid being in transit over Sunday. 121 Private Institutional Public, Municipal, Corporate Samples from of (City, village or town) DESCRIPTION, SAMPLES Collected: Date Raptorial A 1 from R 1 from .County of. C 1 from What other municipalities supplied ....Time. D 1 from .... Chemical A J B J C / D / Shipped via... express. Time..... DESCRIPTION, SOURCE OF SUPPLY: Name (stream, lake or pond) ' What other sources of supply used constantly - ...occasionally Does drought deplete supply -Do odors or tastes result from drought Does rainfall rapidly increase supply.. Does it render the supply turbid WATERSHED Yield of watershed or flow of stream if known - - Has the watershed precipitous .barren.... ..forested. Approximate area of the watershed above intake Number of cities - villages Sewage, purified discharges from... Sewage, unpurified discharges from hamlets total population ...total population - total population - TJaa waiorelipd hppn insnpnf.P.d DA trolled... bv whom how often..... Have rules and regulations been enacted for this watershed by this department -„ - - - - , - r- - Form for Sanitary Survey of Surface Waters Date received SURFACE WATERS (Untreated) (Front) Laboratory numbers. File number. 122 I hereby certify that the samples of this water were collected by (name.. ) on (date .time ) and that I have followed explicitly all directions for packing in ice and immediate shipment by express; and further that I have inspected all conditions affecting the sanitary quality of this water and found them to be as above recorded. Sanitary Supervisor Health Officer appearance .capacity. .pumped or supplied by gravity to reservoir. Show by diagram .treatment.. .area less than 5 feet deep. Has much vegetation grown from bottom. Is there reason to suspect any connection between this water and the spread of typhoid fever or other disease. approximate average depth- .distributing. ..taste... .diameter. .capacity in gallons. Is bottom paved. .elevation .elevation .elevation .elevation elevation .at what point. All containers are sent by express, collect; all samples must be sent, express prepaid. (Sac/c) Describe location of any of the following: ..odor.. .height. .minimum. .distance.. .distance. .distance. .distance. distance LAKES OR PONDS: Give total area of lake or pond Are there complaints regarding sanitary quality. Trouble from algae or other microorganisms. Has the water a scum on the surface. .maximum.. Area greater than five feet deep. .number.. ..number.. ..number. ..number. ..number. Reason for requesting examination. Construction SOURCES OF POLLUTION Storage. RESERVOIRS STANDPIPES Are sides paved. Depth of water. A Privies. B Cesspools. E Barnyards. REMARKS:. C Sewers. D Drains. Area. 123 Private Samples from. .of (City, village or town) DESCRIPTION OF SAMPLES Bacterial A \ f Collected: Date. B \ from Institutional Public, Municipal, Corporate ..County of ...What other municipalities supplied Time . , from B ( from Chemical A J B J C J D J Shipped via._ .express. Time DESCRIPTION OF SOURCE OF SUPPLY: Source of the raw water (If necessary, describe on card for surface waters) Estimated capacity of the plant ( gals.) Daily consumption, gals. Maximum.. Minimum PRELIMINARY TREATMENT: Sedimentation:.. 1 .Basins / number construction ( covered capacity Coagulation ...Coagulant .amount per gal Preliminary sterilization ..Chemical amount per gal.... Preliminary filtration -Type filter ..number of units Total area.. Rate per acre Bacterial efficiency of preliminary treatment, if known FINAL TREATMENT FILTRATION Type of filter Rapid Closed Rapid Open Slow (through sand) Number of units Pumped Gravity Pumped Gravity Area unit Total filtering area Working head or pressure Date received. Form for Sanitary S'urvey of Treated Water Supplies TREATED WATER SUPPLIES (Front) Laboratory numbers. Place. 124 I hereby certify that the samples of this water were collected by (name . ....) on (date ....time ..) and that I have followed explicitly all directions for packing in ice and immediate shipment by express: and further that I have inspected all conditions affecting the sanitary quality of this water and found them to be as above recorded. Sanitary Supervisor Health Officer .Operating head. .Minimum. .How often.. .Appearance. .Air pressure. How often Method of application. Amt. per gal. water treated Is there reason to suspect any connection between this water and the spread of typhoid fever or other disease. .Uniformity coefficient. -Maximum How long. ..Taste.. How often. ..Size- Open or covered. Mechanical agitation. ,By whom. All containers are sent by express collect; all samples must be sent express prepaid. (Back) By whom. .Rate gals, per acre per day. ..Odor. Chemicals used Construction. Effective size. STORAGE RESERVOIR FOR PURIFIED WATERS CONSTRUCTION: Under drain or strainer system. Depth. Are there complaints regarding sanitary quality FINAL TREATMENT, STERILIZATION Reason for requesting the examination. Method by raw or purified water. plant watershed chemical, bacterial Efficiency of purification, if known Depth. Hours per day Head of water over sand. Is first effluent wasted. Laboratory examination Cleaned or washed Sanitary inspection OPERATION: REMARKS: Gravel. Capacity. Sand. 125 Private Samples from.. ..of County of (City, village or town) DESCRIPTION, SAMPLES Collected: Date Bacterial A 1 from ...B ) from Chemical A / B / Owner of Property WELL WATER If public supply, number of wells... Depth of well Diameter Institutional Public, Municipal, Corporate What other municipalities supplied C \ from.... c/ Tenant..... Time D 1 from... DJ Dug, drilled or driven ...Manner of drawing water Depth of water in well... Temperature of water in well Daily consumption ( Maximum. Does the water ever fail If so. under what conditions (gals, per day) Average. Is the water turbid after rainstorms Is the well curbed Is the curb tieht Distance of curb / ,ab.OVe SUr!aCe S™™? ( nelow surlace ground Is the well covered. .' Is the cover tight Is there a metal casing ...Distance of casing ( , , f , ° & ( below surface ground Does water which had been pumped flow into the well ........................................................................................................... Beeinninv at the surface, state character and thickness of the successive la.vers of earth and rock nenetrated Date received Do not describe well water as spring water or as an infiltration gallery or vice versa Form for Sanitary Survey of Ground Water GROUND WATERS (Front) Laboratory numbers. 126 .Elevation of water surface relative to surface of stream or pond Show by diagram relation of well to sources of pollution and nearest surface water; indi- cate probable course of water drainage by arrows. Are there complaints regarding sanitary quality odor. taste... .....appearance. Is there reason to suspect any connection between this water and the spread of typhoid fever or other diseases Reasons for requesting the examination Remarks: I hereby certify that the samples of this water were collected by (name..... - ) on (date time... ... ..) and that I have followed explicitly all directions for packing in ice and immediate shipment by express; and furtiier that I have inspected all conditions affecting the sanitary quality of this water and found them to be as above recorded. Sanitary Supervisor Health Officer ..temperature. proportionately how much. £ o c "o & .ra £ o in level ground Describe location, relative to well or spring, of the following sources of pollution: Record absence as well as presence of sources of pollution. .elevation .elevation .elevation elevation ..elevation All containers are sent by express collect; all samples must be sent, express prepaid, (Back) ..or diminish.. Distance from stream, lake or pond ..in a steep slope. Is stream or pond probably polluted and to what extent. .distance. distance. .distance distance. .distance. Radius of area of the surface wash into the spring. Radius of the area of surface wash into the gallery. Surface or deep. How is the spring protected from this wash. SOURCES OF POLLUTION - .number. .number. .number. .number. number. During drought does flow cease. INFILTRATION GALLERY Situation: in a marsh. SPRING WATER B Cesspools. E Barnyards, stables, etc.. A Privies. C Sewers. D Drains. 127 PART III * SUMMARY OF LAWS AND REGULATIONS RELATING TO LABORATORIES AND LABORATORY SPECIMENS Duties of Commissioner of Health with Respect to Laboratories The State Commissioner of Health authorized to establish laboratories or make contracts, within amount available therefor. Public Health Law, Art. II, Sec. 4-b. (P. H. Manual, p. 15.) Establishment of Laboratories Establishment and Operation of Institute for Study of Malignant Disease Establishment and control provided for and purposes defined. Public Health Law, Art. XVIII, Secs. 344-346. (P. H. Manual, p. 241.) County Laboratories Boards of supervisors authorized to establish county labora- tories or make contracts with other counties or cities for laboratory service. County Law, Secs. 43-44. (P. H. Manual, p. 405.) Supervision and Approval of Laboratories Registration and Supervision of Laboratories Laboratories where live pathogenic germs are handled or culti- vated required to be registered with the New York State Depart- ment of Health; conditions under which such germs or cultures may be transferred to others prescribed. Chapter 411, L. 1917. (P. H. Manual, p. 504.) Distribution of Cultures No person having in his possession cultures of pathogenic bacteria to sell or convey such cultures unless first approved by the State Commissioner of Health. Sanitary Code, Chap. II, Reg. 43-a. (P. H. Manual, p. 326.) Inoculation of Human Beings with Living Bacteria Prohibited until certain conditions have been complied with and until permission has been obtained from State Commissioner * The following summaries should not be regarded as interpretations. Those seeking accurate information should refer to the laws and regulations. 128 of Health. Sanitary Code, Chap. II, Reg. 43. (P. H. Manual, p. 326.) Inspection of Laboratories State Commissioner of Health or his representative authorized to inspect laboratories doing work for the health authorities of the State or any county or municipality therein and to advise persons in charge as to methods employed. Sanitary Code, Chap. II, Reg. 44. (P. H. Manual, p. 327.) Laboratories to be Approved for Examination of Certain Specimens Laboratory specimens in syphilis, gonorrhea and chancroid (Sanitary Code, Chap. II, Reg. 2-a), diphtheria (Reg. 10), typhoid and paratyphoid fever (Reg. 10-a and Reg. 36). Regulation of Sale of Antipneumococcus and Antimenin- goccus Serum No such serum to be sold except in accordance with rules and regulations of State Commissioner of Health. Sanitary Code,. Chap. IX, Reg. 1. (P. H. Manual, p. 362.) Submission and Examination of Specimens Examination of Sputum Health officers required to have examinations made of sputum from suspected case of tuberculosis upon request. Tuberculosis Law, Sec. 321. (P. H. Manual, p. 2f5.) Syphilis, Gonorrhea and Chancroid Physician attending cases or suspected cases to submit such specimens and such data relating thereto as may be required by the special rules and regulations * of the State Commissioner of Health to the State laboratory or to a laboratory approved by the State Commissioner of Health for this purpose. Sanitary Code,. Chap. II, Reg. 2-a. (P. H. Manual, p. 306.) Suspected Persons Persons suspected of having syphilis, gonorrhea or chancroid and examined pursuant to this section, to permit such specimens- * See page 73. 129 to be taken as may be necessary to establish the presence or absence of a suspected disease or infection, subject to certain con- ditions prescribed in this section including the right of the suspected person to apply to a magistrate for an order restrain- ing such examination and that before any such examination each suspected person shall be informed of his rights. Public Health Law, Art. XVII-B, Sec. 343-m. (P. H. Manual, p. 238.) Convicted Persons Not to be released from jurisdiction of court until examined as provided for in preceding section. Public Health Law, Art XVII-B, Sec. 343-n. (P. H. Manual, p. 240.) Laboratory tests in Connection With Marriage Licenses Duty of town or city clerk to require statement from applicant that he (or she) has not been infected with a venereal disease or if infected within five years, he (or she) has had a laboratory test showing freedom from infection. Domestic Relations Law, Art. Ill, Sec. 15. (P. H. Manual, p. 432.) Diphtheria In every case, or suspected case, material for culture to be taken by attending physician (or health officer, if local authorities so require) and submitted to an approved laboratory. Sanitary Code, Chap. II, Reg. 10. (P. IT. Manual, p. 309.) Release Cultures Required in Diphtheria Cases Two successive negative cultures required for release. Sani- tary Code, Chap. II, Reg. 36. (P. H. Manual, p. 321.) Release of Diphtheria Carriers May be released upon securing two negative cultures taken at intervals of not less than twenty-four hours. Rules and Regula- tions for Control of Diphtheria Carriers, Keg. 7. (See depart- ment circular No. 22.) Release of Diptheria Carriers by Virulence Tests Carrier may be discharged if virulence test shows organisms not to be virulent for guinea pigs. Rules and Regulations for 5 130 Control of Diphtheria Carriers, Reg. 6. (See department circular No. 22.) Epidemic Cerebrospinal Meningitis Case to be isolated until two weeks after temperature normal or until three successive cultures, at intervals of not less than five days, shall be found free from meningococci. Sanitary Code, Chap. II, Reg. 36. (P. H. Manual, p. 321.) Typhoid and Paratyphoid Fever In every case suspected of being typhoid or paratyphoid fever, sample of blood to be submitted to an approved laboratory by attending physician. Sanitary Code, Chap. II, Reg. 10-a. (P. H. Manual, p. 310.) Release in Typhoid and Paratyphoid When patient's occupation involves handling of milk, dairy products or other foods, two successive negative fecal specimens, at intervals of not less than seven days, to be submitted to a laboratory approved by State Commissioner of Health. Sani- tary Code, Chap. II, Reg. 36. (P. H. Manual, p. 321.) Milk, Certified and Grade A Bacteria counts required. Sanitary Code, Chap. Ill, Reg. 13. (P. H. Manual, pp. 337-340.) Milk, Grade B Bacteria count required, except as provided below. 'Sanitary Code, Chap. Ill, Reg. 13. (P. H. Manual, pp. 340-341.) Bacteria Counts ; Exception If impracticable to obtain bacteria counts, milk, except certi- fied and grade A, may be graded upon score. Sanitary Code, Chap. Ill, Reg. 13. (P. H. Manual, p. 343.) Laboratory Reports Examinations showing evidence of communicable disease When examinations by a laboratory or person other than the attending physician discloses evidence of communicable disease, 131 report required to be made to health officer of municipality where laboratory is situated and health officer of municipality from which specimen came. Permanent record to be kept. Public Health Law, Art. II, Sec. 25. (P. H. Manual, p. 38.) Certain Records Confidential Protection of records in tuberculosis Records of results of examination showing presence of tubercle bacilli confidential. Tuberculosis Law, Sec. 322. (P. H. Manual, p. 215.) Tieports and Information Regarding Syphilis, Gonorrhea and Chancroid Confidential Reports or information secured by a board of health or health officer under the provisions of this article (XVII-B) confidential. Public Health Law, Art. XVILB, Sec. 343-r. (P. H. Manual, p. 240.) Records of Cases of Syphilis, Gonorrhea and Chancroid not to be Disclosed Records of State Department of Health or of any local depart- ment or local health officer relating to case, not to be disclosed except as provided in this regulation. Sanitary Code, Chap. II, Reg. 29-b. (P. H. Manual, p. 317.) Miscellaneous Shaving or lather brushes Hair or bristles used in manufacture to be treated, for purpose of destroying anthrax germs, in accordance with regulations of State Commissioner of Health. Sanitary Code, Chap. VII, Reg. 6-a. (P. H. Manual, p. 358; amendment in effect March 1, 1919.) Method of Sterilization to be Approved Method of sterilization of second-hand material to be used in manufacture of mattresses, etc., to be approved or disapproved by State Department of Health. General Business Law, article 25-b, section 389-u. (P. H. Manual, p. 456.)