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Avian pox virus infection in a common barn owl (Tyto alba) in southern Brazil

2011; Colégio Brasileiro de Patologia Animal (CBPA); Volume: 31; Issue: 7 Linguagem: Inglês

10.1590/s0100-736x2011000700012

1678-5150

Gilberto D’Ávila Vargas, A Albano, Geferson Fischer, Sílvia de Oliveira Hübner, Simone E. Sallis, Cristina Freitas Nunes, Margarida Buss Raffi, Mauro Pereira Soares,

Microbial infections and disease research

A young common barn owl (Tyto alba) was referred to the Núcleo de Reabilitação da Fauna Silvestre (Nurfs), Federal University of Pelotas (UFPel), after been found in a barn of a brick factory in the urban area of Pelotas, Rio Grande do Sul, Brazil. The bird was apathic, weak and with crusty lesions in the featherless areas (eyes, beak, legs), and died soon after arrival at Nurfs. Necropsy and histopathological examination of the lesions were carried out. The hyperplasia and hypertrophy of the cutaneous lesions, several eosinophilic intracyto-plasmic inclusion bodies in epithelial cells (Bollinger bodies), as well as particles characteristic of poxvirus, observed by electronic microscopy, confirmed the infection by avian poxvirus, what highlights the importance of Tyto alba as carrier of the virus in the wild.