First report of mixed Trypanosoma cruzi discrete typing units infection in Triatoma phyllosoma in the peri-urban environment of Oaxaca, Mexico
Background: Chagas disease, a zoonosis transmitted mainly by hematophagous insects of the subfamily Triatominae, is caused by Trypanosoma cruzi, classified into six discrete typing units (DTUs: TcI-TcVI and Tcbat). Methods: Insect vectors were collected from 84 human dwellings in the municipality of Santo Domingo Tehuantepec, Oaxaca, Mexico; 4.76% were infested. DTUs were determined using conventional and nested PCR. Results: The infection rate was 43.6%. All insects were infected with TcI while one specimen showed mixed infection with TcII. Conclusions: This is the first report of T. cruzi mixed infection in Triatoma phyllosoma, its main vector in the study region.
Main Authors: | , , , , |
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Format: | Texto biblioteca |
Language: | eng |
Subjects: | Trypanosoma cruzi, Triatoma phyllosoma, Enfermedad de chagas, Triatominae, Vectores de enfermedades, Zonas urbanas, |
Online Access: | https://doi.org/10.1590/0037-8682-0449-2023 |
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