A study of cross-reactivity in serum samples from dogs positive for Leishmania sp., Babesia canis and ehrlichia canis in enzyme-linked immunosorbent assay and indirect fluorescent antibody test

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Data

2008-01-01

Autores

Oliveira, Trícia Maria F. de Sousa [UNESP]
Furuta, Patrícia I. [UNESP]
de Carvalho, Débora
Machado, Rosangela Z.

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Resumo

To verify the presence of cross-reaction among leishmaniosis, ehrlichiosis and babesiosis in serological diagnostics used in human visceral leishmaniasis control programs, serum samples from leishmaniasis endemic and non-endemic areas were collected and tested by Indirect Fluorescent Antibody (IFAT) and Enzyme-linked immunosorbent assay (ELISA). All serum samples from endemic areas were positive for Leishmania sp., by ELISA and IFAT, 51% positive for Babesia canis and 43% for Ehrlichia canis by IFAT. None of the serum samples from non-endemic areas were positive for Leishmania sp., by IFAT, but 67% were positive for B. canis and 78% for E. canis using the same test. When tested by ELISA for Leishmania sp., four samples from non-endemic area were positive. These dogs were then located and no clinical signs, parasites or antibody was detected in new tests for a six month period. Only one of these 4 samples was positive for B. canis by IFAT and ELISA and three for E. canis by IFAT. The results of the work suggest a co-infection in the endemic area and no serological cross-reaction among these parasites by IFAT and ELISA.

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Babesia canis, Ehrlichia canis, Elisa, IFAT, Leishmania sp.

Como citar

Revista Brasileira de Parasitologia Veterinaria, v. 17, n. 1, p. 7-11, 2008.