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Entomological surveillance of Chagas disease in the East of Minas Gerais region, Brazil
Rezende, Mariana de Almeida Rosa; Lana, Marta de; Diotaiuti, Liléia; Machado-de-Assis, Girley Francisco.
Affiliation
  • Rezende, Mariana de Almeida Rosa; Universidade Federal de Juiz de Fora. Campus Governador Valadares. Programa de Pós-Graduação em Ciências Aplicadas à Saúde. Governador Valadares. BR
  • Lana, Marta de; Universidade Federal de Ouro Preto. Programa de Pós-Graduação em Ciências Biológicas e Programa de Pós-Graduação em Ciências Farmacêuticas. Ouro Preto. BR
  • Diotaiuti, Liléia; Centro de Pesquisas René Rachou. Laboratório de Triatomíneos e Epidemiologia da Doença de Chagas. Belo Horizonte. BR
  • Machado-de-Assis, Girley Francisco; Universidade Federal de Juiz de Fora. Campus Governador Valadares. Laboratório de Parasitologia. Governador Valadares. BR
Rev. Soc. Bras. Med. Trop ; Rev. Soc. Bras. Med. Trop;55: e0065, 2022. tab, graf
Article in En | LILACS-Express | LILACS | ID: biblio-1406968
Responsible library: BR1.1
ABSTRACT
ABSTRACT

Background:

After decentralizing the actions of the Chagas Disease Control Program (CDCP) in Brazil, municipalities were now responsible for control measures against this endemic, supervised by the Regional Health Superintendencies (RHS). We aimed to evaluate the recent entomological surveillance of Chagas disease in the Regional Health Superintendence of Governador Valadares (RHS/GV) from 2014 to 2019.

Methods:

Triatomines captured by residents during entomological surveillance were sent to the reference laboratory, where the species and evolutionary stages were identified, place of capture, and presence of Trypanosoma cruzi. A database was created, and the following were calculated the rate of infection by T. cruzi (overall rate and rate by species), monthly seasonality, spatial distribution of species, number of captures, and infected triatomines/health microregions.

Results:

We identified 1,708 insects; 1,506 (88.2%) were triatomines, most were adult instars (n=1,469), and few were nymphs (n=37). The identified species were Triatoma vitticeps, Panstrongylus megistus, Panstrongylus diasi, Rhodnius neglectus, and Panstrongylus geniculatus. The first three were most frequently captured and distributed throughout the study area. Most bugs were captured intradomicile (72.5%), mainly in the second semester, between September and November, with an average infection rate of 41.5% (predominantly T. vitticeps, 49.2%). All municipalities sent triatomines, especially in the microregions of Governador Valadares.

Conclusions:

These data reinforce the need and importance of improving Chagas disease control measures in the region to establish active and participatory entomological surveillance.
Key words

Full text: 1 Collection: 01-internacional Database: LILACS Type of study: Screening_studies Country/Region as subject: America do sul / Brasil Language: En Journal: Rev. Soc. Bras. Med. Trop Journal subject: MEDICINA TROPICAL Year: 2022 Document type: Article / Project document Affiliation country: Brazil Country of publication: Brazil

Full text: 1 Collection: 01-internacional Database: LILACS Type of study: Screening_studies Country/Region as subject: America do sul / Brasil Language: En Journal: Rev. Soc. Bras. Med. Trop Journal subject: MEDICINA TROPICAL Year: 2022 Document type: Article / Project document Affiliation country: Brazil Country of publication: Brazil