Abstract
The domestic and peridomestic presence of Triatoma infestans depends on several factors, such as human behavior, vector behavior, ecology, and the environment. This work was conducted in 139 domiciliary units, where triatomines were captured and risk factors in domiciles and peridomicilies were recorded. Household dwellers were interviewed to obtain information about practices regarding this disease and entomological indicators were calculated. Infestation indices were 59.7% for house compounds, 4.3% for domestic areas and 58.3% for the peridomestic areas. Intradomicile infestation was significantly associated with housing characteristics. The presence of chicken coops in peridomicilies was associated with an increased risk of infestation. Of the respondents, 80% did not recognize the importance of the peridomiciliary structures for triatomine control and had infested peridomicilies. The results show the importance of peridomiciles as refuge sites for Triatominae bugs; however, household dwellers do not perceive peridomiciles as areas that favor the presence of vectors. Actions for raising awareness about factors that favor the presence of triatomines are needed to improve the conditions of peridomiciliary environments.
Highlights
The domestic and peridomestic presence of Triatoma infestans depends on several factors, such as human behavior, vector behavior, ecology, and the environment
Most (99%) of the insects collected were T. infestans, with the remaining ones being four adults of Triatoma guasayana (Wygodzinsky & Abalos), and four adults of Triatoma garciabesi (Jurberg et al.29), which were captured in peridomiciles
Of the total collected triatomines, only four adults of T. infestans were infected with T. cruzi (NI: 0.35) The house unit infestation index (HII) was 59.7% (83/139), the domiciliary infestation index (DI) was 4.3% (6/139), and the peridomiciliary infestation index (PI) was 58.3% (81/139)
Summary
The domestic and peridomestic presence of Triatoma infestans depends on several factors, such as human behavior, vector behavior, ecology, and the environment. In vast areas of these countries, rural populations live in precarious houses that favor colonization by vectors This disease is caused by the protozoa Trypanosoma cruzi, which is transmitted to humans through the feces of infected blood-sucking insects belonging to the subfamily Triatominae (Heteroptera: Reduviidae). Crocco L et al - Factors determining triatomine presence and/or cracked walls, dirt floors, thatched roofs, precarious hygienic conditions, easy access to food supplies, and dogs and chickens sleeping inside or near the house. The presence of these factors increases the risk of triatomine infestation in these rural areas[11,12]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Revista da Sociedade Brasileira de Medicina Tropical
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
