Triatoma brasiliensis Neiva, 1911 and Triatoma pseudomaculata Corrêa and Espínola, 1964 (Hemiptera, Reduviidae, Triatominae) in rural communities in Northeast Brazil

ABSTRACT Chagas disease is an important endemic morbidity in Latin America affecting millions of people in the American continent. It is caused by the protozoan Trypanosoma cruzi, and transmitted through the feces of the insect vector belonging to the subfamily Triatominae. The present conducted an...

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Bibliographic Details
Published in:Revista do Instituto de Medicina Tropical de São Paulo
Main Authors: Ana Laura da Silva Ferreira, Maricélia de Aquino Santana, Luan Victor Brandão dos Santos, Daniel Pereira Monteiro, José Henrique Furtado Campos, Layara Larice Jesuíno Sena, Vagner José Mendonça
Format: Article in Journal/Newspaper
Language:English
Published: Universidade de São Paulo (USP) 2020
Subjects:
Chagas disease
Surveillance
Epidemiology
Complex Triatoma brasiliensis
Triatoma pseudomaculata
Trypanosoma cruzi
Arctic medicine. Tropical medicine
RC955-962
Infectious and parasitic diseases
RC109-216
Arctic
Online Access:https://doi.org/10.1590/s1678-9946202062074
https://doaj.org/article/0b63275da5e84b2dbe6416a47f75fd00
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Summary:ABSTRACT Chagas disease is an important endemic morbidity in Latin America affecting millions of people in the American continent. It is caused by the protozoan Trypanosoma cruzi, and transmitted through the feces of the insect vector belonging to the subfamily Triatominae. The present conducted an entomological survey of triatomines and analyzed entomological indicators, such as the rate of infestation, colonization, triatomine density and natural infection in rural communities in the municipality of Campinas do Piaui, Piaui State, in the Northeast region of Brazil. Data on the search of triatomines performed in 167 domiciliary units (DUs), harvested during the period of February to July 2019, in 12 rural communities were analyzed. The capture of triatomines occurred in all studied communities, being 76 the number of positive DUs, of the 167 surveyed, presenting a global rate of infestation of 45.51%. Two triatomines species were collected: Triatoma brasiliensis (98.49%) and T. pseudomaculata (1.51%), the first was found in the domiciliary and peridomiciliary areas, while the second was captured only in peridomiciliary areas. The index of colonization was 17.1%. Natural infection was observed only in 5.44% of T. brasiliensis samples. The entomological survey was conducted in rural communities, showingthe risk of transmission of Chagas disease to the local population, requiring continuous entomological surveillance and vector control.

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