Canine visceral leishmaniasis in riverside communities of the Cuiabá river watershed

Authors

  • Valéria Régia Franco Sousa Universidade Federal de Mato Grosso
  • Álvaro Felipe de Lima Ruy Dias Universidade Federal de Mato Grosso
  • Juliana Yuki Rodrigues Universidade Federal de Mato Grosso
  • Mariana de Medeiros Torres Secretaria Municipal de Saúde
  • Janaína Marcela Assunção Rosa Moreira Universidade Federal de Mato Grosso
  • Luciano Nakazato Universidade Federal de Mato Grosso
  • Valéria Dutra Universidade Federal de Mato Grosso
  • Arleana do Bom Parto Ferreira de Almeida Universidade Federal de Mato Grosso

DOI:

https://doi.org/10.5433/1679-0359.2019v40n6Supl2p3313

Keywords:

Leishmania infantum, Riverside communities, Dog, Cuiaba.

Abstract

Visceral Leishmaniasis (VL) is a parasitic zoonosis expanding in Brazil. Several municipalities in the state of Mato Grosso including those on the river Cuiabá have reported the incidence of both human and canine cases and the identification of sandfly vector, Lutzomyia longipalpis and Lu. cruzi. Dogs are considered the main reservoir of Leishmania chagasi in the urban areas, hence, we devised a cross-sectional study aimed at assessing the prevalence of the infection in the dogs of riverside communities on Cuiabá River watershed by parasitological (parasitic isolation in culture), serological, and molecular methods. Of the 248 surveyed dogs, 24 were positive in enzyme linked immunosorbent assay (ELISA) or immunofluorescence antibody test (IFAT), with a prevalence of 9.7%. The riverside communities located in the town of Santo Antonio do Leverger displayed a higher prevalence of the disease than the cities of Cuiabá and Várzea Grande; however, the difference was not statistically significant (p > 0.05). Dogs born in the communities had a 3.24-fold higher risk of acquiring the infection. Promastigote were isolated in the axenic culture from the bone marrow samples and intact skin. Further, DNA of Leishmania sp. was detected in the bone marrow samples, lymph nodes, leukocyte cover, and skin of only one examined dog. These samples were sequenced and they showed 99% homology to L. infantum. To conclude, we observed a higher prevalence of infection in Riverside communities of Santo Antonio do Leverger and the confirmation of autochthony in these areas justifies the surveillance actions to minimise the risk of transmission within the riverine community itself, besides its dissemination to other areas by tourism.

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Author Biographies

Valéria Régia Franco Sousa, Universidade Federal de Mato Grosso

Profa., Faculdade de Medicina Veterinária, FAVET, Universidade Federal de Mato Grosso, UFMT, Cuiabá, MT, Brasil.

Álvaro Felipe de Lima Ruy Dias, Universidade Federal de Mato Grosso

Discente, Programa de Pós-graduação em Ciências Veterinárias, PPGVet, UFMT, Cuiabá, MT, Brasil.

Juliana Yuki Rodrigues, Universidade Federal de Mato Grosso

Discente, Programa de Residência Uniprofissional em Medicina Veterinária, PRUMV, UFMT, Cuiabá, MT, Brasil.

Mariana de Medeiros Torres, Secretaria Municipal de Saúde

Pesquisador, Secretaria Municipal de Saúde, SMS, Prefeitura Municipal de Rondonópolis, Rondonópolis, MT, Brasil.

Janaína Marcela Assunção Rosa Moreira, Universidade Federal de Mato Grosso

Discente, PPGVet, UFMT, Cuiabá, MT, Brasil.

Luciano Nakazato, Universidade Federal de Mato Grosso

Prof., FAVET, UFMT, Cuiabá, MT, Brasil.

Valéria Dutra, Universidade Federal de Mato Grosso

Profa., FAVET, UFMT, Cuiabá, MT, Brasil.

Arleana do Bom Parto Ferreira de Almeida, Universidade Federal de Mato Grosso

Profa., FAVET, UFMT, Cuiabá, MT, Brasil.

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Published

2019-09-30

How to Cite

Sousa, V. R. F., Dias, Álvaro F. de L. R., Rodrigues, J. Y., Torres, M. de M., Moreira, J. M. A. R., Nakazato, L., … Almeida, A. do B. P. F. de. (2019). Canine visceral leishmaniasis in riverside communities of the Cuiabá river watershed. Semina: Ciências Agrárias, 40(6Supl2), 3313–3320. https://doi.org/10.5433/1679-0359.2019v40n6Supl2p3313

Issue

Section

Communication

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