Periódicos Brasileiros em Medicina Veterinária e Zootecnia

p. 01-06

Raiva em bovinos diagnosticados no setor de patologia veterinária da UFRGS, Porto Alegre, RS, Brasil no período de 2002 a 2007

Miguel Ocampos Pedroso, Pedrode Souza Leal, JulianoGustavo Cabrera Dalto, AndréGustavo Schneider de Oliveira, LuizDriemeier, David

Background: Rabies is a zoonotic disease caused by rabies virus, the genus Lyssavirus e family Rhabdoviridae. The commonest way of rabies transmission is by the bite of an infected mammal. Bites by rabid animals generally inoculate virus-laden saliva through the skin into muscle and subcutaneous tissues. Rabies has previously been regarded as 100% lethal. In South America, rabies in cattle is transmitted by vampire bats Desmodus rotundus mainly resulting in a major economic problem and public health. The present study retrospectively analyzed data from cattle affected by rabies registered between 2002 and 2007, evaluating the epidemiological, clinical and pathological and immunohistochemistry studies.Materials, Methods & Results: This retrospective study included epidemiological, clinical, pathological, direct immunofluorescence, and immunohistochemistry fi ndings from 26 cattle affected by rabies diagnosed by the Laboratory of Veterinary Pathology, UFRGS, Porto Alegre, RS, Brazil in the period from 2002 to 2007. The samples were selected from a histological diagnosis of lesions characteristic of rabies or positive direct immunofl uorescence for rabies where samples were available for histological examination. The central nervous system (CNS) samples of cattle were reported in 10% formalin fi xed, routinely processed for histology, embedded in paraffin, cut at 5 µm and stai

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