Open AccessTriatoma costalimai Naturally Infected by Trypanosoma cruzi: A Public Health Concern
Author(s) -
Simone Caldas Teves,
Helena Keiko Toma,
Catarina Macedo Lopes,
Bruna Lucia Nascimento de Oliveira,
Ana Laura Carbajal-de-la-Fuente,
Danielle Misael de Souza,
Iza Alencar Sampaio de Oliveira,
Jacenir Reis dos Santos Mallet,
Teresa Cristina Monte Gonçalves
Publication year - 2018
Publication title -
american journal of tropical medicine and hygiene
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.015
H-Index - 151
eISSN - 1476-1645
pISSN - 0002-9637
DOI - 10.4269/ajtmh.18-0419
Subject(s) - trypanosoma cruzi , chagas disease , triatoma , biology , nymph , vector (molecular biology) , outcrop , veterinary medicine , transmission (telecommunications) , feces , xenodiagnosis , zoology , ecology , reduviidae , virology , parasite hosting , hemiptera , medicine , recombinant dna , gene , electrical engineering , engineering , computer science , paleontology , biochemistry , world wide web
The rupestrian Triatoma costalimai species has been found infected by Trypanosoma cruzi in wild, peridomicile, and intradomicile environments in the municipality of Aurora do Tocantins, Tocantins, Brazil. Proximity between rock outcrops increases the risk of vector transmission of Chagas disease via this species. This work describes a focus of colonization by T. costalimai specimens infected by T. cruzi in rock outcrops located in an urban area in this municipality. Parasitological examination of feces from the collected specimens, axenic cultivation of T. cruzi -positive samples, and genetic characterization of the isolates were performed. Nymph and adult specimens were collected with a high infection prevalence (64.5%) for T. cruzi discrete type unit (DTU I). Participation of the T. costalimai species in the wild cycle of T. cruzi in rock outcrops located in an urban area demonstrates the need for entomological surveillance and control of vector transmission of Chagas disease in the municipality of Aurora do Tocantins, Tocantins.
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