Avian encephalomyelitis in naturally infected pigeons in Turkey

Avian Pathology : Journal of the W.V.P.A
N Toplu, Gunay Alcigir

Abstract

The pathological and immunohistochemical findings of avian encephalomyelitis (AE) were described in various tissues of naturally infected pigeons of a flock from a outbreak in Turkey. Clinically, paresis, paralysis, circling movement and torticollis of the head associated with nervous signs were marked symptoms among the diseased pigeons. At necropsy, small or large white-greyish foci were detected in the pancreas, and erosive-ulcerative foci along with petechial hemorrhages in ingluves. Histopathologically, lesions in central nervous system, particularly in the cerebellum molecular layer, consisted of non-suppurative encephalomyelitis. Lesions in the pancreas revealed non-suppurative pancreatitis along with acinar degeneration and necrosis and/or lymphoid aggregations. Immunohistochemical staining of formalin-fixed, paraffin-embedded tissues was performed using a direct-fluorescein antibody technique with chicken anti-AE virus serum fluorescein isothiocyanate conjugate. Viral antigen was strongly stained in cytoplasm of epithelial cells of the exocrine glands, and neurons of the cerebral hemispheres and midbrain. In addition, viral antigen was also marked in the kidneys and tissues of the digestive system. Consequently, this a...Continue Reading

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Citations

May 27, 2009·Avian Pathology : Journal of the W.V.P.A·D de B WelchmanD Spackman
Apr 27, 2007·Journal of Comparative Pathology·N TopluT C Oguzoglu
Oct 24, 2015·Biologicals : Journal of the International Association of Biological Standardization·Xiao-hui YuGuo-zhong Zhang
Jun 15, 2006·The Veterinary Journal·D Marlier, H Vindevogel
Oct 4, 2014·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Akos BorosGábor Reuter
May 17, 2018·Archives of Virology·Wencheng LinQingmei Xie
Nov 17, 2020·Frontiers in Veterinary Science·Andrea J AyalaSonia M Hernandez

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