Özet:

The aim of present study was to report spontaneous Encephalitozoon cuniculi (E. cuniculi) infection in rabbits and Encephalitozoon intestinalis (E. intestinalis) infection in cattle in Mosul city - Iraq. Fecal samples were collected randomly from 142 rabbits and 115 cattle during the period from June, 2012 to June, 2013. Thin smears were prepared from the fecal samples and stained with different fecal stains, as well as the indirect immunofluorescent antibody technique. Infected rabbits were necropsied and pathology of the infection was described. The result showed that microsporidiosis was detected in 41 (26.9%) rabbits and in 12 (10.4%) cattle. E. cuniculi spores were identified in 31 out of the 41 rabbits (73.2%) and E. intestinalis in 7 out of the 12 cattle (58.3%). Infected rabbits showed vasculitis, granulomatous encephalitis, chronic interstitial nephritis, granulomatous hepatitis, cholangitis, vasculitis and non – suppurative pneumonia, infiltration of mononuclear cells in most layers of the intestines, and hyperplasia of lymphoid tissues. E. cuniculi spores were seen in the liver, kidneys and lungs. This study considered the first one that report microsporidiosis (E. cuniculi, E. intestinalis) in Mosul city - Iraq.

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