﻿STUDIES IN PLAGUE IMMUNITY. 

 Series 32 — Continued. 



205 



Animal 

 No. 



Vaccinated 



intraperitoneally 



May 16 with— 



Reinoculated 

 July 16 with— 



Result. 



Autopsy and remarks. 



1981 



Two 48-hour cul- 





Not reinocu- 



No evidence of pest at the post- 





tures "Pest 





lated; dead 



mortem examination. Perito- 





Avirulent." 





May 19, 3 days 

 after vacci- 

 nation. 



neum hypersemic but no hemor- 

 rhages. In smears from spleen 

 no organisms seen. Cultures 

 from spleen and heart negative. 

 In cultures from the abdominal 

 cavity about 10 colonies devel- 

 oped. Spleen not swollen. 



1982 



___do 





Not reinocu- 



No evidence of pest. Marked hy- 

 peremia of the abdominal wall. 









lated; dead 









May 17, 23 

 hours after 

 vaccination. 



Culture from the heart negative. 

 Culture from, the abdominal 

 cavity, fair number of pest bacilli. 



1983 



do 



5 oesen sus- 

 p e n si on 

 "Pest Viru- 

 lent." 



Alive and well . 





1984 



do. - _ 





Not reinocu- 



No evidence of pest infection. No 









lated; dead . 



haemorrhages in abdomen. 









May 17, less 



Walls slightly oedematous. Cul- 









than 24 hours 



ture from the heart negative. 









after vacci- 



From abdominal cavity numer- 









nation. 



ous colonies of pest. 1 cc. of 

 the fluid present in the abdom- 

 inal cavity was injected into the 

 abdomen of guinea pig No. 1998 

 which remained alive. 



1985 



__._ do : 





Not reinocu- 



No evidences of pest. Abdominal 

 wall hyperemia No haemor- 









lated; dead 









May 22, 6 days 



rhage. Spleen not swollen. No 









after vacci- 



fluid in abdomen. In cover slip 









nation. 



from the spleen and abdomen no 

 bacilli seen. Culture from ab- 

 domen 15 colonies of pest bacilli. 

 In culture from heart, 2 colonies. 



1986 



do 





Not reinocu- 

 lated; dead 



Culture from heart negative. Cul- 

 ture from the abdomen, numer- 













May 20, 4 days 

 after vacci- 

 nation. 



ous colonies with typical mor- 

 phology of pest bacillus. 



