Cross reaction evaluation of Leishmania spp and Trypanosoma cruzi antigens in dogs' serologic response by indirect immunofluorescence test (IIF)

Authors

  • Raquel Martins Luciano Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Botucatu, SP
  • Simone Baldini Lucheis Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Botucatu, SP
  • Marcella Zampoli Troncarelli Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Botucatu, SP
  • Daniela Martins Luciano Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Botucatu, SP
  • Hélio Langoni Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Botucatu, SP

DOI:

https://doi.org/10.11606/issn.1678-4456.bjvras.2009.26765

Keywords:

Canine visceral leishmaniasis, Chagas' disease, Cross reaction, Serology, Epidemiological inquiry

Abstract

Visceral Leishmaniasis (VL) is a zoonosis caused by Leishmania spp. protozoa. Dog is the main parasite's reservoir, especially in urban areas. Indirect Immunofluorescent Antibody Test (IFAT) is commonly used for canine visceral leishmaniasis (CVL) diagnosis, by detection of antibodies against the parasite. However, Trypanosoma cruzi (T.cruzi) cross reactions can occur in serological diagnosis. In order to evaluate the occurrence of cross reactions between antigens of Leishmania spp. and T.cruzi, 150 blood samples of CVL epidemiological inquiry positive dogs were collected and sera were tested by IFAT. Dogs were culled at Zoonosis Control Center of Bauru (SP), an endemic area for VL. Another 150 dogs' blood samples were collected in Botucatu (SP), a non endemic area for LV, and sera were also tested by IFAT. Serum samples of dogs from Bauru were positive, both for Leishmania spp. and for T. cruzi, showing high cross-reactions incidence, reinforcing the need of diagnosis confirmation by other tests. Serum samples of dogs from Botucatu demonstrated low prevalence of positive results by IFAT, both for Leishmania spp. and T.cruzi. However,despite the low number of positive serological results for these parasites, the epidemiological and serological investigation for LV and Chagas disease in dogs from Botucatu must be kept, considering the importance of dog as domestic reservoir for both parasites.

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Published

2009-06-01

Issue

Section

UNDEFINIED

How to Cite

1.
Luciano RM, Lucheis SB, Troncarelli MZ, Luciano DM, Langoni H. Cross reaction evaluation of Leishmania spp and Trypanosoma cruzi antigens in dogs’ serologic response by indirect immunofluorescence test (IIF). Braz. J. Vet. Res. Anim. Sci. [Internet]. 2009 Jun. 1 [cited 2024 Apr. 24];46(3):181-7. Available from: https://www.revistas.usp.br/bjvras/article/view/26765