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BACILLUS PE3TIS Kitasato & Yersin, 1894. 
A. Study — morphology, staining and cultural characteristics 
Viability. 
Channels of entrance. 
Channels of elimination. 
Pathogenicity — guinea pigs, rabbits, rats, mice. 
Diagnosis : 
Yersin serum — 
Method of manufacture and standardization. 
Prophylactic use. 
Curative use. 
Haffkine prophylactic — 
Methods of manufacture. 
Uses. 
B. Disinfection. 
C. Quarantine. 
D. Relation of rats and other mammals to spread of plague. 
E. Relation of fleas, flies, and insects to spread of plague. 
