260 VETERINARY BACTERIOLOGY 



Transmission. The disease is transmitted from one animal to 

 another through infected food, mangers, drinking troughs, etc.; 

 rarely through wounds or skin abrasions. Veterinarians and horse- 

 men sometimes become infected through the skin, rarely by in- 

 halation. 



Bacilli of Setter, Babes, and Kutscher' 



Organisms morphologically similar to the preceding have 

 been isolated from pus by Selter and by Babes, and from the nos- 

 trils of a healthy horse by Kutscher. They may be differen- 

 tiated readily by their lack of pathogenesis, and would rarely, 

 if ever, lead to mistakes in diagnosis. 



