﻿216 



STRONG. 

 Series 24 — Continued. 



Animal 

 No. 



Vaccinated 

 December 4 

 subcutane- 

 ously with— 



Infected 



December 18 



with— 



Result. 



Autopsy and remarks. 



1539 



2 agar slant 



Nearly i oese 



Alive and 







cultures. 



"Pest Viru- 



well. 







"Maassen 



lent." 









Alt." 









1540 

 1541 

 1542 

 1543 



do 



...do .. .... 



.do 





do . .. 



_ do 



.do 



. do 



do 



do 



_do 



do .. 



do 



1544 



do 



do 



do 





1545 



do._ 



. .. do . . 



Dead Dec. 











21, after 3 



ganisms found in spleen. Cultures and 









days. 



smears from the tissues near the point of 

 inoculation show numerous pest bacilli. 



1546 



do. . 



do. 



Alive and 

 well. 









*1547 



... do _ 





Died from 



Skin burned and incised, revealing a small 

 abscess in which numerous pest bacilli 









first inoc- 









ul ation 



("Maassen Alt") are present. Cultures 









Dec. 7, 



developed numerous colonies of this or- 









after 3 



ganism and of Staphylococcus aureus. 









days. * 





1548 



1 agar slant 

 culture, 

 "Maassen 



Alt." 



Nearly i oese 

 "Pest Viru- 

 lent." 



Alive _ 





1549 



do.. . 



do 



do 





1550 



...do 



do 



do 





1551 

 *1552 



do . 



do. . 



do - 



Nothing apparently abnormal about the 

 point of inoculation. No abscess or 



' do 





Died from 









first inoc- 









ula tion 



pest bacilli seen in smears. In 2 cultures 









Dec. 10, 



from the spleen, one developed 12 colo- 









after 6 



nies and the other 14 colonies of "Maas- 









days. * 



sen Alt." 



1553 



About i agar 

 slant cul- 

 ture "Maas- 

 sen Alt." 



Nearly A oese 

 "Pest Viru- 

 lent." 



Alive 





*It is not entirely clear that these animals succumbed to a pest infection alone. They were evi- 

 dently in poor health and in three the Staphylococcus aureus was also isolated. In the case of 

 monkey number 1552 it seems clear, however, that the animal really succumbed to pest infection. 

 It must be noted that animals numbered 1536, 1537 and 1547 died in a much shorter time than one 

 would expect from a pest infection with an avirulent organism. 



