causing Disease in Man in Nyasaland. 



39 



ITT. Strain III, Chituluka. 



Table III. 



Date. 



"Vn nf 



jy o. oi 

 expt. 



Source of virus. 



Period of 

 incubation, 

 in days. 



Duration 

 o£ disease, 

 in days.* 



Eemarks. 











Cattle. 







1912. 

 July 23... 

 „ 23... 



967 



From Dog 



577 



20 





Still alive after 234 days. 



968 



577 



83 







31 





Goats. 







July 23. 

 „ 23... 



937 



From Dog 



577 



13 



36 



Died of Strain in. 



938 



577 



9 



19 





„ 23... 



939 





57" 



9 



41 



11 31 



„ 23... 



940 





577 



6 



29 



— 



31 33 



a 







33 33 









Average 



9-2 

 Monkeys. 



31-2 





July 23... 

 23 



,, CO.... 



941 



From Dog 



577 



6 



29 



Died of Strain HI. 



942 



577 



6 



14 





„ 23... 



943 





577 



6 



20 





„ 23... 



944 





577 



6 



11 

















Average 



6-0 

 Dogs. 



18 -5 





June 27... 



577 



Chituluka 





7 



78 



DiVfl of Strain TTT 



July 23... 

 „ 23... 



945 



From Dog 



577 



9 



31 



946 





577 



6 



36 





„ 23... 



947 



a 



577.... 



9 



33 



33 33 



„ 23... 



948 





577 



9 



33 



33 33 





a 





33 33 









Average 



8-0 



42 "2 











Guinea-pigs. 







July 23... 



„ £6... 



949 



From Dog 



577 



20 



62 



Died of Strain III. 



you 





577 



20 



OX 



„ 23... 



951 



a 



577 



9 



73 



33 33 





a 













Average 



16-3 



Rats. 



62 





July 23... 

 „ 23.. 



952 



From Dog 



577 



6 



24 



Died of Strain III. 



953 



577 



9 



20 



„ 23... 



954 



a 



577 



6 



21 



33 33 





11 

















Average 



7-0 



21 -7 





Duration includes the days of incubation ; it dates from day of infection. 



