Epizootic Lymphangitis: A Working Equid Disease
Equine researchers in the U.K. hope to define better the transmission methods of a fungal disease, called epizootic lymphangitis (EZL), that causes painful skin and eye lesions and leads to lameness and loss of use in working horses and donkeys throughout the developing world.
Gina Pinchbeck, BVSc, Cert. ES, PhD, Dipl. ECVPH, MRCVS, senior lecturer in veterinary epidemiology at the University of Liverpool, in the U.K., and her colleagues are currently studying EZL. She presented what they have learned about the disease at the first Havemeyer International Workshop on Infectious Diseases of Working Donkeys, held Nov. 19-21, 2013, in Addis Ababa, Ethiopia.
There are three forms of the disease, which is caused by a fungus called Histoplasma capsulatum var. farciminosum—cutaneous (skin), ocular, and respiratory. She explained that a cutaneous EZL case starts as a single nodule that erupts. The infection travels though the lymphatics, causing swelling of the limbs and nodules elsewhere on the
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