FEB 20 1073

 
     

ORGANISATION MONDIALE
DE LA SANTE

 
 

ORLD HEALTH
ORGANIZATION

      

1211 GENEVE 27 - SUISSE

1211 GENEVA 27 - SWITZERLAND
Télégr.: UNISANTE-Genéve

Telegr.: UNISANTE-Geneva
Tél. 346061 Télex. 27821

 

In reply please refer to: 19
ost 16 February 73

Priére de rappeler la référence:

Dear Josh,

With respect to your note of 26 January on yellow fever,
enclosed are copies of replies received from our technical units.
You may recall that this problem was raised in our CBW booklet (page

62). When I was writing that section I recalled that Max Th@bler
onee advanced the view of an immunological block to the yellow fever
virus by another arbovirus (I believe he mentioned dengue). I agree

that the matter should not be neglected and that the question should
be studied much more profoundly than it has been to date to determine
what, besides luck, is responsible for the curious fact of yellow
j fever not taking over in some Asian countries, You might wish to
i make a point of this at the forthcoming ACMR meeting in June,
| You will soon receive an agenda of the meeting.

Cordial regards.
Yours sincerely,

Martin Kaplan

:
x ;

 

Professor J. Lederberg

Professor of Genetics

Stanford University School of Medicine
| Stanford University Medical Center
| Stanford, California 94305

United States of America

ENCL,: as mentioned

lo — ao
f cet ae °

f i eo en
ce : ee oo ms
5 = a

es pe
yor" a

‘ : a ' - ~~:

ee Fe