| Autor: |
Teves SC; Postgraduate Program in Animal Biology, Universidade Federal Rural do Rio de Janeiro (UFRRJ), Rio de Janeiro, Brazil.; Interdisciplinary Laboratory of Entomological Surveillance in Diptera and Hemiptera, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil., Toma HK; Laboratory of Molecular Diagnosis and Hematology, Faculty of Pharmacy, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil., Lopes CM; Interdisciplinary Laboratory of Entomological Surveillance in Diptera and Hemiptera, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil., Oliveira BLN; Interdisciplinary Laboratory of Entomological Surveillance in Diptera and Hemiptera, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil., Carbajal-de-la-Fuente AL; Laboratory of Eco-Epidemiology, Faculty of Exact and Natural Sciences, Instituto de Ecología, Genética y Evolución de Buenos Aires-Consejo Nacional de Investigaciones Científicas y Técnicas (IEGEBA-CONICET), University of Buenos Aires, Buenos Aires, Argentina., Souza DM; Interdisciplinary Laboratory of Entomological Surveillance in Diptera and Hemiptera, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil., Oliveira IAS; Secretary of Health of the State of Tocantins, Palmas, Brazil., Santos-Mallet JRD; Interdisciplinary Laboratory of Entomological Surveillance in Diptera and Hemiptera, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil., Gonçalves TCM; Interdisciplinary Laboratory of Entomological Surveillance in Diptera and Hemiptera, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil. |
| Abstrakt: |
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. |
