Symptoms, Treatment and Prevention. 669 



The disease may be confused with tuberculosis of the lymph 

 glands, although a microscopical examination will readily dif- 

 ferentiate these affections. 



According to Vryburg a special form of bovine farcy occurs on 

 the Island of Sumatra; this begins with chronic abscess formation 

 of a lymph gland, whereupon the process spreads to the neighboring 

 lymph glands and also along the course of the lymph vessels, producing 

 abscesses which break, discharge a thick, creamy, odorless, rarely 

 viscous, pus and become transformed into torpid ulcers. The pre- 

 seapular and inguinal glands as well as the lymphatic vessels of the 

 pectoral and abdominal region are most frequently affected. The 

 disease which appears occasionally as an enzootic, runs its course in 

 from 1 to 9 months. About 90% of affected animals recover. 



The pus found in the abscess contains an immotile aero-anaerobic, 

 Gram negative bacillus which produces indol in cultures. It is said that 

 animals may be protected against natural infection by treatment with 

 attenuated and then by virulent cultures or by treatment with a mixture 

 of cultures and immune serum. 



Lienaux described a disease of cattle under the name of 

 Lymphangioitis pseudofarcinosa which is supposed to be caused by the 

 bacillus of pseudotuberculosis (see p. 633). 



Treatment and Prevention. Extirpation of the tumors and 

 cauterization of the surrounding tissue, if resorted to before the 

 disease becomes advanced, will occasionally check the local 

 process, but even in these favorable instances recurrences are 

 frequent. 



To prevent the spread of the plague it is recommended that 

 all diseased animals be isolated, their morbid products de- 

 stroyed and all contaminated premises and utensils thor- 

 oughly disinfected. 



Literature. Maillet, Ree., 1829. 631. — Nooard, A. P., 1888. II, a93. — 

 Lienaux, Ann. v6t., 1905. 297. — Vryburg, Eec, 1907. 171. — Holmes, Trop. Vet., 

 1908. III. 289. 



Other Streptotrichoses in Ruminants and Horses. According to 

 Luginger cattle are subject to endocardites as a result of hematogenic 

 infection with a form of streptothrix which is said to constitute a specific 

 species (Str. valvulas destruens bovis). "When injected into the blood 

 stream it produces purulent pleuritis as well as pseudotuberculosis 

 in sheep. 



Berestneff observed a delicately branched streptothrix (cocco- 

 bacillus pseudoactinomycosis polymorphus) in a tumor from the lip 

 of an ox which he designated as pseudoactinomycosis. Bonvieini isolated 

 a species of aerobic streptothrix from a similar cutaneous affection from 

 a steer, which had been transmitted to several cows. Finally Zschokke 

 isolated and cultivated a fungus from a goat's tongue which Silber- 

 schmidt described as Str. caprae. 



Zschokke described an affection under the name of actinophytosis 

 which manifested itself by the appearance of a tumor as large as a 

 child's head in the mucous membrane of the upper lip of a horse; 

 in another instance there was a similar tumor as large as a man's fist 



