Triatomine vectors of Trypanosoma cruzi in an endemic area for Chagas disease in Northeast Brazil

Rev Soc Bras Med Trop. 2024 Feb 5:57:e007002023. doi: 10.1590/0037-8682-0413-2024. eCollection 2024.

Abstract

Background: We assessed the distribution of triatomines in an endemic area for Chagas disease.

Methods: This retrospective study used secondary data extracted from the Official System of the National Chagas Disease Control Program (Sistema Oficial do Programa Nacional de Controle da Doença de Chagas - SisPCDCh).

Results: A total of 7,257 (725.7 ± 221.7 per year) specimens were collected from 2013 to 2022. Most of them (6,792; 93.6%) were collected in the intradomicile and 465 (6.4%) in the peridomicile. A total of 513 (7.1%) triatomines tested positive for the presence of trypomastigote forms, similar to Trypanosoma cruzi.

Conclusions: The spatial analysis revealed a heterogeneous distribution of triatomines across different municipalities.

MeSH terms

  • Animals
  • Brazil / epidemiology
  • Chagas Disease* / epidemiology
  • Humans
  • Insect Vectors
  • Retrospective Studies
  • Triatoma*
  • Trypanosoma cruzi*