Selected phages for Se typhi-murium.

 

Phage. Prepared. C.T.D. Concentration Homolorsons

 

 

of the sample. strain of S.

ty-mur.
30 1/12 1946 I 1073 ~ 1073925 1071 135
39 31/10 1947 I About 107°?? Cone. 331
36 20/2 1947 I 10799 _ 4978975 n 409
34 27/1 1947 I About 107? 107+ 111
31 1/12 1946 I m 1979985 " 125
33. 17/6 1948 II 107799 _ 4979919 " 23
8 15/6 1948 II About 107°? !? " 119
32 29/1 1947 I 107? ~ 1077949 Cone. 74
37 19/6 1948 II " n 107+ 306
4 14/11 1946 I " " " 22

2 19/6 1948 II About 1072?° * Gone. 100
203” 3/6, 5/6 1948 It " " n 193

I = Original preparation.
II = New (second) preparation made after the publication of the
typing experiments.
x) By typing experiments this phage have to be used in dilution
-0,5

10% C.7.D. = about 10 o The phage will then produce confluent

lysis on strains of type 14.