600 ACUTE INFECTIOUS DISEASES 



FOOT-AND-MOUTH DISEASE. 



Aphthae Epizooticoe. 



Foot-and-mouth disease rarely occurs in carnivora, but 

 has been observed in a few cases in dogs. Dogs kept on 

 infected premises in contact with infected cattle, especially 

 those that are used for herding animals are the ones most 

 liable to be affected. Dogs are not very susceptible to the 

 infection, and take it in a mild form. The principal symp- 

 toms are vesicles on the mucous membranes of the lips, 

 sometimes forming ulcers, which penetrate more or less 

 deeply into the tissues. Sometimes the feet become involved, 

 when there will appear a vesicular exanthema on the balls 

 of the feet and between the toes. The feet will be swollen, 

 hot and sensitive, and the patient very lame. General 

 symptoms, such as elevation of temperature, diarrhea, loss 

 of appetite and vomiting have been observed. The disease 

 has made its appearance in fowls, but only in a few instances 

 has it been recorded. 



HEMORRHAGIC SEPTICEMIA OF CATS. 



Infectious G astro-enteritis. 



History.— This disease has been reported as occurring in 

 various sections of the United States and Europe. So far 

 but little is known about it as the disease is a comparatively 

 new one. 



Occurrence.— Cat septicemia occurs enzootically, espec- 

 ially among cats congregated as in catteries and shows. 



Etiology.— The disease seems to be produced by a specific 

 organism (Bacterium felisepticus bipolaris of Huse and 

 Coleman). It is described as a short, rod-shaped organism, 

 taking the bipolar stain readily with the common stains, but 

 is Gram-negative. 



Pathogenicity.— The work up to the present time indicates 

 the pathogenicity of this organism is confined to cats, rabbits 

 and guinea pigs. Dogs and birds show no tendency toward 

 natural infection. 



