96 



7. Occurrence in animals. 



On 27. IX. 20 inoculations were made from the mouths of GO 

 guinea-pigs, which had arrived from Germany a few days 

 before. In 5, organisms were found which according to 

 all the previously (pp. 68 — 70) described tests, must 

 be classed as Pfeiffers bacilli. They all belonged however to the 

 „atypical*' forms. In one of the animals two different varieties 

 were found. 



In 43 mice and 33 horses no haemoglobinophilic bacteria 

 were discovered. 



The table below records the whole of the strains of Pfeif- 

 fers bacilli cultivated. To each investigation in which Pfeiffer's 

 bacillus was found is assigned: (1) a capital letter which indi- 

 cates where the material came from, and (2) a number. 



1. Influenza. 

 Strains cultivated from influenzal pneumonia post mortem, 

 or lung puncture: 



11—9 (Puncture, Oct. 1918). 

 10 (Autopsy. „ „ ). 

 „ 11—31 (Autopsy. 5. XII. 18—25. III. 19) 

 „ 32-37 ( ,, 28. I.— 9. III. 20) 



Strains cultivated from sputum or from the throat. 

 I 1— 13 (Throat cultivation or sputum, July 1918) 

 ., 14— 19 (Sputum. Oct. 1918) 

 „ 20—100 ( „ 12. XI. 18—25. III. 19) 

 „ 101—104 ( „ 28. I.— 9. III. 20) 

 „ 105—128 (Throat. 7—8. I. 22.) 



2. Whooping-cough. 

 P 1—12 (19—20. III. 19) 

 „ 13—14 (12. VII. 19) 

 „ 15—26 (19. IX. 19) 



3. Measles. 

 Ms 1—15 (9. I. 20) 



