Trypanosoma cruzi over the ocean: Insular zones of Chile with presence of infected vector Mepraia species

Ninette Rives-Blanchard, FERNANDO LEON TORRES PEREZ, Silvia Ortiz, Aldo Solari, Ricardo Campos-Soto

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

6 Citas (Scopus)

Resumen

Chagas disease is one of the main zoonosis mediated by vectors in America. The etiologic agent Trypanosoma cruzi infects different mammals and is transmitted principally by the subfamily Triatominae. Mepraia is a genus endemic to Chile, responsible for transmitting T. cruzi in the sylvatic cycle. Mepraia includes three species: M. gajardoi and M. parapatrica inhabit coastal areas, while M. spinolai inhabits coastal and interior valleys. Previous studies reported the occurrence of Mepraia in Pan de Azucar Island, currently classified as M. parapatrica, but T. cruzi has not been reported in these insects. It is suggested that this could be due to infrequent insect feeding on mammalian hosts. In order to detect T. cruzi in insects from coastal islands, specimens from Pan de Azucar and Santa Maria Islands were examined. A region of kDNA of T. cruzi was amplified by PCR and hybridization assays were performed for T. cruzi genotyping of insect feces. The presence of infected insect and mixed T. cruzi infections was demonstrated. This is the first report of infected Triatominae in coastal islands in Chile. We discuss T. cruzi detection in insular zones, and the presumptive reservoirs that may participate in maintaining its transmission cycle in this habitat. Mixed and unidentified infections suggest that there are complex and unknown reservoir interactions in these habitats.

Idioma originalInglés
Páginas (desde-hasta)229-231
Número de páginas3
PublicaciónActa Tropica
Volumen172
DOI
EstadoPublicada - 1 ago 2017

Huella Profundice en los temas de investigación de 'Trypanosoma cruzi over the ocean: Insular zones of Chile with presence of infected vector Mepraia species'. En conjunto forman una huella única.

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