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Diagnosis of Leptospira spp. Infection in Sheep Flocks in the State of Mato Grosso, Brazil

Eckstein, Camila; Bastos Lopes, Luciano; Spyridion Moustacas, Valéria; Oliveira Rodrigues, Rogério; Gomes de Castro, Bruno; Lima Santos, Renato.
Acta Sci. vet.; 45(1)2017.
Artigo em Inglês | VETINDEX-Express | ID: vti-731770


Background: Leptospirosis has a worldwide distribution with high social and economic impact. It is caused by a variety of Leptospira spp. serovars, particularly in tropical regions. Various species of animals can be affected by Leptospira spp. including cattle, horses, sheep, goats and swine, and can act as a reservoir for human infection. In Brazil, sheep leptospirosis has been diagnosed in a variety of States, however, little is known about sheep flocks of Mato Grosso. Considering the marked growth of sheep industry in Mato Grosso State in past recent years, this study aimed to evaluate the frequency of serologically positive sheep for Leptospira spp. serovars in the State of Mato Grosso (Brazil).Materials, Methods & Results: Blood samples of 346 sheep, which belonged to 16 sheep flocks of the medium northern region of Mato Grosso was obtained by jugular vein puncture. Serum was obtained by blood centrifugation and stored at -20C until the test to be performed. The diagnosis was performed using the microscopic agglutination test. Serovars Australis, Autumnalis, Bataviae, Bolívia, Castelonis, Celledoni, Grippotyphosa, Hardjo, Hardjobovis, Hebdomadis, Icterohaemorrhagiae, Javanica, Lagoa, Norma, Panama, Pomona, Sejroe, Shermani, Szwajizak, and Wolffi were tested. Reactions were considered positive with minimum titration of 1:100. Considering all serovars, 54.9% of sheep we
Biblioteca responsável: BR68.1