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First report of mixed Trypanosoma cruzi discrete typing units infection in Triatoma phyllosoma in the peri-urban environment of Oaxaca, Mexico

Domínguez Cruz, Dulce Concepción [autora] | Velázquez Ramírez, Doireyner Daniel [autor] | Olivo Vidal, Zendy Evelyn [autora] | De Fuentes Vicente, José Antonio [autor] | Ochoa Díaz López, Héctor [autor].
Tipo de material: Artículo en línea Artículo en línea Tipo de contenido: texto Tipo de medio: computadora Tipo de portador: recurso en líneaTema(s): Trypanosoma cruzi | Triatoma phyllosoma | Enfermedad de chagas | Triatominae | Vectores de enfermedades | Zonas urbanasTema(s) en inglés: Trypanosoma cruzi | Triatoma phyllosoma | Chagas disease | Triatominae | Disease vectors | Urban áreasDescriptor(es) geográficos: Santo Domingo Tehuantepec (Oaxaca, México) Nota de acceso: Acceso en línea sin restricciones En: Revista da Sociedade Brasileira de Medicina Tropical. Volumen 57, e00703 (2024), páginas 1-4. --ISSN: 0037-8682Número de sistema: 64640Resumen:
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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.

Recurso en línea: https://doi.org/10.1590/0037-8682-0449-2023
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Acceso en línea sin restricciones

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. eng

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