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A Leptospirose bovina

Authors: Riviere, Guillaume Jacques Alain;

A Leptospirose bovina

Abstract

A leptospirose é uma doença zoonótica com uma distribuição mundial que pode afectar a maioria dos mamíferos. A doença é causada pela bactéria do género Leptospira, existindo mais de 60 espécies e 300 serovares. A leptospirose bovina é provocada principalmente pela infecção pelo serovar Hardjo, apesar de numerosos serovares poderem infetar e causar leptospirose nos bovinos. A forma crónica da doença é a principal forma da doença nos bovinos, responsável por importantes perdas económicas, provocando falhas reprodutivas, nomeadamente abortos, infertilidade e mortinatalidade. As leptospiras podem ser isoladas dos rins e do trato reprodutor dos animais infetados e a transmissão pode ocorrer por contato directo com animais infetados ou indiretamente através do ambiente contaminado. O diagnóstico clínico é geralmente difícil, pois os animais manifestam poucos sinais clínicos e geralmente são inespecíficos. O diagnóstico laboratorial é laborioso pela dificuldade em cultivar e isolar as bactérias. O teste de micro-aglutinação (MAT) é o teste serológico de referência mas a sua interpretação é difícil, principalmente na fase crónica da doença. O controlo da leptospirose é baseado na gestão do meio ambiental, na vacinação e na implementação duma antibioterapia com objectivo da cura bacteriológica, da diminuição do risco de transmissão dentro do rebanho e da diminuição das perdas devido a falhas reprodutivas.

Country
Portugal
Keywords

Vacinação, Aborto, MAT, Vaccination, Abortion, Leptospirosis, Leptospirose

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selected citations
These citations are derived from selected sources.
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).
BIP!Citations provided by BIP!
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.
BIP!Popularity provided by BIP!
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.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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