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Revista do Instituto de Medicina Tropical de São Paulo

On-line version ISSN 1678-9946


JOPPERT, Adriana Marques; HAGIWARA, Mitika Kuribayashi  and  YOSHINARI, Natalino Hajime. Borrelia burgdorferi antibodies in dogs from Cotia county, São Paulo State, Brazil. Rev. Inst. Med. trop. S. Paulo [online]. 2001, vol.43, n.5, pp.251-255. ISSN 1678-9946.

Dogs sera samples collected from Cotia County, São Paulo were tested using indirect immunoenzymatic test (ELISA) in order to study Lyme disease serology in dogs. ELISA method was standardized and G39/40 North American strain of Borrelia burgdorferi was used as antigen. Positive results were confirmed employing the Western blotting technique. Because of the possibility of cross-reactions, sera were also tested for different serological strains of Leptospira interrogans and L. biflexa using microscopic sera agglutination test. Twenty-three of 237 (9.7%) serum samples were positive in the ELISA; 20 of them (86.9%) were confirmed by the Western blotting, what suggests that Cotia may be a risk area for Lyme disease. Although 4 samples (1.7%) were positive for Lyme disease and leptospirosis, no correlation was found between the results (X2 = 0.725; p = 0.394) what suggests absence of serological cross reactivity.

Keywords : Lyme disease; Borrelia burgdorferi; Dogs; ELISA; Brazil.

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