Eco-bio-social determinants for house infestation by non-domiciliated Triatoma dimidiata in the Yucatan peninsula, Mexico

Dumonteil, Eric, Nouvellet, Pierre, Rosecrans, Kathryn, Ramirez-Sierra, Maria Jesus, Gamboa-León, Rubi, Cruz-Chan, Vladimir, Rosado-Vallado, Miguel and Gourbière, Sébastien (2013) Eco-bio-social determinants for house infestation by non-domiciliated Triatoma dimidiata in the Yucatan peninsula, Mexico. PLoS Neglected Tropical Diseases, 7 (9). e2466 1-9. ISSN 1935-2735

[img] PDF - Published Version
Available under License Creative Commons Attribution.

Download (537kB)

Abstract

Background
Chagas disease is a vector-borne disease of major importance in the Americas. Disease prevention is mostly limited to vector control. Integrated interventions targeting ecological, biological and social determinants of vector-borne diseases are increasingly used for improved control.

Methodology/principal findings
We investigated key factors associated with transient house infestation by T. dimidiata in rural villages in Yucatan, Mexico, using a mixed modeling approach based on initial null-hypothesis testing followed by multimodel inference and averaging on data from 308 houses from three villages. We found that the presence of dogs, chickens and potential refuges, such as rock piles, in the peridomicile as well as the proximity of houses to vegetation at the periphery of the village and to public light sources are major risk factors for infestation. These factors explain most of the intra-village variations in infestation.

Conclusions/significance
These results underline a process of infestation distinct from that of domiciliated triatomines and may be used for risk stratification of houses for both vector surveillance and control. Combined integrated vector interventions, informed by an Ecohealth perspective, should aim at targeting several of these factors to effectively reduce infestation and provide sustainable vector control.

Item Type: Article
Schools and Departments: School of Life Sciences > Evolution, Behaviour and Environment
Depositing User: Pierre Nouvellet
Date Deposited: 17 Aug 2018 14:59
Last Modified: 02 Jul 2019 14:49
URI: http://sro.sussex.ac.uk/id/eprint/77919

View download statistics for this item

📧 Request an update