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Pesquisa Veterinária Brasileira

versión impresa ISSN 0100-736X


HAMOND, Camila et al. Pulmonary hemorrhage in horses seropositive to leptospirosis. Pesq. Vet. Bras. [online]. 2011, vol.31, n.5, pp.413-415. ISSN 0100-736X.

The aim of this study was to verify the occurrence and severity of pulmonary hemorrhage (PH) in horses seropositive or not to leptospirosis. A total of 84 training horses were tested for anti-Leptospira antibodies and submitted to endoscopy of the upper airways 30-60 minutes after exercise. Forty-nine (46.4%) horses were seropositive (titer>100) to serovar Copenhageni. Seventeen horses (20.2%) presented PH in different grades, significantly more commonly observed in seropositives (34.7%) than seronegatives (8.6%) (p<0.05), and also more severe in the first. Additionally, a seropositive horse is 4.26 times more likely (OR) to present PH than a seronegative one. Fifteen days after specific antibiotic treatment for leptospirosis a significant improvement in grade of hemorrhage was observed. Therefore it is suggested that leptospirosis may potentiate the severity of PH and that specific antibiotic treatment directed towards leptospirosis may help to control the disease.

Palabras clave : Leptospirosis; horses; pulmonary hemorrhage.

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