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Prevalence of Epizootic Lymphangitis in Cart Horses in Southwest Shewa of Oromia Region, Ethiopia

Rahel Asfaw Mahendra Pal Gobena Ameni
Vol 2(3), 146-151

A cross sectional study was conducted in Woliso from November 2011 to April 2012 to estimate the prevalence of epizootic lymphangitis in 390 cart horses using clinical, direct smear and mycological examination as well as histofarcin test. The overall prevalence of epizootic lymphangitis was 24.9% (97/390) in carthorses in Woliso. The wounds caused by harness were major predisposing factors identified. The majority (38.1%) of the cases were at the moderate stage of the severity of the disease, and the lesions were predominantly (95%) found on the limbs. The fungus was easily demonstrated in the clinical specimens by Gram’s staining technique. The isolation of Histoplasma capsulatum variety farciminosum was attempted on Sabouraud dextrose agar. The sensitivity of histofarcin test was 83.3% while its specificity was 80.6%.The positive and negative predictive values of histofarcin test were 76.9% and 86.2%, respectively. The findings of this study revealed that the disease is prevalent in Woliso and warrants for the launching of a sound control strategy. Furthermore, the potential application of histofarcin is suggested for the diagnosis of epizootic lymphangitis in horses as evidenced from the results of the current study.

Keywords : Epizootic lymphangitis Histoplasma capusulatum variety farciminosum Horse Prevalence Woliso

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