ANTI-LEPTOSPIRASPP. ANTIBODIES IN OVINES FROM MONTE NEGRO MUNICIPALITY, RONDONIA STATE, BRAZIL

D.M. Aguiar G.T. Cavalcante S.A. Vasconcellos G.O. Souza M.B. Labruna L.M.A. Camargo S.M. Gennari About the authors

ABSTRACT

The present study determined the prevalence of anti-Leptospira spp.antibodies in 141 ovines from 15 farms of the Monte Negro Municipality, Rondonia State, Brazil, by the microscopic agglutination test. Twelve (80.0%) farms presented at least 1 reactive animal. Antibodies titers of ? 100 were detected in 47 (33.3%) animals, the most frequent serovars being Patoc (29.7%), Autumnalis (14.8%), Pyrogenes (10.6%), Australis (4.2%), Bratislava (4.2%), Hardjo (4.2%), Icterohaemorrhagiae (4.2%), Castellonis (2.1%) and Hebdomadis (2.1%). In 11 (23.4%) sera it was not possible to determine the most frequent serovar involved. The results raise a warning as to the possibility of infection in the human being by Leptospira in light of the regional characteristics of the Amazon agricultural frontier.

KEY WORDS
Ovine; leptospira; prevalence; serovar; Amazon; Brazil

Instituto Biológico Av. Conselheiro Rodrigues Alves, 1252 - Vila Mariana - São Paulo - SP, 04014-002 - São Paulo - SP - Brazil
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