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; Velázquez-Ramírez, Doireyner Daniel; Olivo-Vidal, Zendy Evelyn; Fuentes-Vicente, José Antonio De; Ochoa-Díaz-López, Héctor.
Rev. Soc. Bras. Med. Trop
; 57: e00703, 2024. graf
Artículo
en Inglés
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LILACS-Express
| ID: biblio-1550683
ABSTRACT
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.
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