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Pacheco's Disease in Psittacine Birds

B. Panigrahy and L. C. Grumbles
Avian Diseases
Vol. 28, No. 3 (Jul. - Sep., 1984), pp. 808-812
DOI: 10.2307/1590254
Stable URL: http://www.jstor.org/stable/1590254
Page Count: 5
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Pacheco's Disease in Psittacine Birds
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Abstract

Pacheco's disease, caused by a herpesvirus, was diagnosed in 20 groups of 47 psittacine birds received for necropsy. A tentative diagnosis, based on history and gross lesions, was confirmed by one or more of the following observations: Cowdry type A inclusions in the hepatocytes and cells of other affected tissues, pathogenicity of tissue suspensions for chicken embryos, cytopathic effects of herpesvirus in monolayers of chicken embryo fibroblasts, and demonstration of herpesvirus in cell-culture fluid by electron microscopy. /// La enfermedad de Pacheco, causada por virus Herpes, fue diagnosticada en 20 de 47 grupos de aves psitácidas recibidas para necropsia. El diagnóstico presuntivo basado en la historia y las lesiones macroscópicas fué confirmado mediante el hallazgo de una o varias de las observaciones siguientes: Presencia de cuerpos de inclusión Cowdry tipo A en los hepatocitos y en células de otros tejidos afectados; patogenicidad de las suspensiones de tejidos para embriones de pollo; efecto citopatogénico típico de los virus Herpes en monocapas de fibroblasto de embrión de pollo; y demostración por medio del microscopio electrónico de la presencia de virus Herpes en el flúido del cultivo celular.

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