Caracterização epidemiológica da leptospirose em ovinos comercializados em feira de animais no Sertão de Pernambuco no Semiárido Brasileiro.

Abstract

Epidemiological characterization leptospirosis in ovine marketed in Fair animals in the backlands of Pernambuco Brazilian semiarid. Leptospirosis is a zoonotic disease caused by bacteria of the genus Leptospira spp., distributed worldwide, particularly prevalent in the Americas and considered endemic in Latin America and the Caribbean, with a strong economic impact on the farming sector. This study aimed to carry out an epidemiological characterization and point risk factors associated with leptospirosis in sheep commercialized at animal fairs held in Tabira-PE municipality. Serum samples were collected from 119 sheep older than six months, belonging to eight owners in the municipal animal fair from November 2014 to June 2015. For serological diagnosis of infection with Leptospira spp, we used the microscopic agglutination test (MAT) with a collection of 24 serotypes as antigen, considering positive samples with more than 50% agglutination in a minimum titer of 1: 100. Of the 119 samples, 16 were seropositive for at least one serotype Leptospira spp, resulting in a prevalence of 13.45% (95% CI = 8.67 to 21.24%). The most frequent serotype was Icterohaemorrhagiae (62,5% of positive reactions). There were no variables to the occurrence of leptospirosis (p> 0.2). Concludes what the infection by Leptospira spp. is present in the studied herds, and some factors they may be contributing to the infection in herds, as the contact with wildlife and rodents, and the presence of bovines and dogs in properties.