Residual foci of Triatoma infestans infestation: Surveillance and control in Rio Grande do Sul, Brazil, 2001-2018

Rev Soc Bras Med Trop. 2021 Mar 8:54:e0530-2020. doi: 10.1590/0037-8682-0530-2020. eCollection 2021.


Introduction: This retrospective study conducted from 2001 to 2018 investigated the residual foci of Triatoma infestans infestation in Rio Grande do Sul, Brazil.

Methods: The data were obtained via entomological surveillance and the distribution of vector occurrence. The coverage of active research was mapped.

Results: The largest coverage rate for active research was observed in the northwest region of the total of 515,081 domiciles researched. Most T. infestans specimens were captured in the peridomicile.

Conclusions: Infestation has decreased significantly since 2008, and T. infestans has not been captured since 2015.

MeSH terms

  • Animals
  • Brazil
  • Chagas Disease*
  • Environment
  • Insect Vectors
  • Retrospective Studies
  • Triatoma*