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Inspecção do sistema nervoso central em pequenos ruminantes

Authors: Vala, Helena; Mesquita, João; Esteves, Fernando; Pinho, Fátima;

Inspecção do sistema nervoso central em pequenos ruminantes

Abstract

O Scrapie é uma doença neurodegenerativa fatal que afecta ovinos e caprinos e é a forma mais comum das Encefalopatias Espongiformes Transmissíveis (EET's), que incluem a doença de Creutzfeldt – Jakob (CJD), em humanos, e a Encefalopatia Espongiforme Bovina (BSE). O Plano de Vigilância Activa do Scrapie, em aplicação na União Europeia desde 2002, permitiu determinar uma prevalência de Scrapie superior ao esperado. De forma a efectuar uma avaliação preliminar da incidência desta patologia em Portugal, foram recolhidos os troncos cerebrais e cerebelos de 4822 pequenos ruminantes abatidos num matadouro no centro de Portugal e, posteriormente, enviados para pesquisa laboratorial de EETs. Após análise laboratorial, detectaram-se 8 casos de Scrapie atípico em ovinos. A percentagem de casos positivos (0,17%) detectados em pequenos ruminantes com mais de 18 meses, durante o período de realização deste estudo, foi baixa e, segundo os resultados laboratoriais, enquadram-se no perfil de Scrapie atípico.

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Portugal
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Keywords

Plano de Vigilância, Pequenos Ruminantes, EET

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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