The first unequivocal report of Encephalitozoon cuniculi in rabbits and Encephalitozoon intestinalis in cattle in Mosul city-Iraq


The aim of present study was to report spontaneous Encephalitozoon cuniculi (E. cuniculi) infection in rabbits andEncephalitozoon intestinalis (E. intestinalis) infection in cattle in Mosul city - Iraq. Fecal samples were collected randomlyfrom 142 rabbits and 115 cattle during the period from June, 2012 to June, 2013. Thin smears were prepared from the fecalsamples and stained with different fecal stains, as well as the indirect immunofluorescent antibody technique. Infected rabbitswere 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 and granulomatous encephalitis, chronicinterstitial nephritis, granulomatous hepatitis and cholangitis, vasculitis and non – suppurative pneumonia, infiltration ofmononuclear cells in most layers of the intestines, and hyperplasia of lymphoid tissues. E. cuniculispores were seen in theliver, kidneys and lungs. This study considered the first one that reportmicrosporidiosis (E. cuniculi, E. intestinalis) in Mosulcity - Iraq.