EPIZOOTIC LYMPHANGITIS 467 



Course. — ^The course in glanders is very varied. Like 

 tuberculosis of the ox its duration is usually a matter of 

 months or years. The chronic course may be interrupted 

 by acute exacerbations and remissions, until finally the 

 disease assumes a clinical form in which either nasal or skin 

 glanders or both become manifest. The patient either 

 dies or is destroyed. In rare instances death may result 

 from inanition or occiu* suddenly following pulmonary 

 hemorrhage. The periods of fever which occur du±'ing the 

 course of the chronic disease are probably due to the develop- 

 ment of fresh foci. 



To a certain extent the course depends upon the food and 

 care which is given the patient. Poorly fed, overworked 

 horses more readily succumb to the disease. The nasal dis- 

 charge which becomes mixed with the food and water and 

 is ingested by the patient produces continual reinfection, 

 which increases the development of the disease. 



A few cases of pulmonary glanders and even nasal and skin 

 glanders recover. Such instances, however, are exceptional 

 in temperate climates. It is said that in tropical countries 

 glanders sometimes assumes a more benign form, and that 

 patients showing marked clinical symptoms of the disease 

 ultimately recover. Similar observations have been made in 

 the western United States. They belong to the exceptional 

 rather than the rule. 



EPIZOOTIC LYMPHANGITIS. 



Japanese Farcy. Saccharomycosis. 



Definition. — ^Epizootic lymphangitis is a chronic, com- 

 municable disease of solipeds which manifests itself as a 

 suppurative inflammation of the subcutaneous lymph vessels 

 and regionary lymph glands. 



Occurrence.— The disease occurs in Southern Europe, 

 but has also been reported from Finland, Russia, and Eng- 

 land. It is common in Asia (Japan, India) and Africa. 

 Whether or not true cases have occurred in the United 

 States is problematical. The ones so diagnosed are probably 

 "sporotrichosis" presenting similar symptoms. 



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