ArticleRevista da Sociedade Brasileira de Medicina Tropical2022
Triatomine fauna in the state of Bahia, Brazil: What changed after 40 years of the vector-control program?
Article in Revista da Sociedade Brasileira de Medicina Tropical, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Knowledge about Chagas disease among Primary Health Care professionals in a municipality located in northeastern Brazil.PLoS neglected tropical diseases · 2026Article
- New technologies for identification and surveillance of Chagas disease vectors.Revista da Sociedade Brasileira de Medicina Tropical · 2026Review
- Seroepidemiological survey and seropositivity rate for Trypanosoma cruzi infection in a community-based cardiac screening initiative in Feira de Santana, Bahia, Brazil.PLoS neglected tropical diseases · 2026Article
- On the juice? Trypanosoma cruzi vectorial-oral outbreak investigation in a semi-arid rural area of Brazil.Parasites & vectors · 2025Article
- Chagas disease in Trinidad and Tobago - a call to action.Transactions of the Royal Society of Tropical Medicine and Hygiene · 2025Article
- Climate change-induced degradation of expert range maps drawn for kissing bugs (Hemiptera: Reduviidae) and long-standing current and future sampling gaps across the Americas.Memorias do Instituto Oswaldo Cruz · 2024Article
- Stronger control-surveillance systems for vector-borne Chagas disease.Memorias do Instituto Oswaldo Cruz · 2023Article
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13 authors.
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Abstract
backgroundNeglected tropical diseases are a growing threat to global health, and endemic Chagas disease has emerged as one of the most important health problems in America. The main strategy to prevent Trypanosoma cruzi transmission is chemical control of vectors. This study presents a descriptive analysis of synanthropic triatomines before and after the implementation of a vector-control program in Bahia, Brazil.
methodsDescriptive analysis and geospatial statistics were performed on triatomine data, (1) the relative abundance and (2) proportional spatial distribution, from Bahia during two periods: (A) 1957 to 1971 and (B) 2006 to 2019.
resultsWe observed a decrease in the relative abundance of Panstrongylus megistus (A: n=22.032, 61.9%; B: n=1.842, 1.0%) and Triatoma infestans (A: n=1.310, 3.7%; B: n=763, 0.43%), as well as an increase in the relative abundance of T. sordida (A: n=8.314, 23.4%, B: n=146.901, 81.6%) and T. pseudomaculata (A: n=894, 2.5%, B: n=16.717, 9.3%).
conclusionsOur results indicate a clear reduction in the occurrence of P. megistus and T. infestans (last record in 2015) and an increase in the relative abundance and geographical distribution of T. sordida and T. pseudomaculata after 40 years of the vector-control program. The high frequency of other triatomine species in the municipalities of the state of Bahia and their abundance in recent years highlight the need to reinforce permanent entomological surveillance actions to prevent Chagas disease.
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