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Title

PATHOLOGICAL REPORT OF LISTERIAL MENINGOENCEPHALITIS IN SHEEP

Pages

 Start Page 197 | End Page 202

Abstract

 In spring of 2012, two ewes of a SHEEP flock from west region of Alborz province with neurological disorders as circling, dullness, depression, incoordination and anorexia were referred to veterinary school hospital of Islamic Azad University of Karaj branch. On initial examination, Central Nervous System lesions were suspected. In order to confirm the diagnosis, one of them was utanaized. Macroscopic findings in necropsy were leptomeningial opacity, cloudy cerebrospinal fluid and meningeal vessels congestion. Many foci of yellow-brown discoloration (0.1 mm in diameter) were seen in brain stem section. Microscopically, neuronal necrosis, gliosis, perivascular cuffing, neutrophilic micro abscesses and MENINGOENCEPHALITIS were observed. Listeria monocytogenes was isolated from brain samples and CSF in bacteriological Lab. On the basis of macroscopic signs, histopathological findings and microbiological test results, meningoencephalic LISTERIOSIS was detected in these cases.

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