CHICKEN COOPS, Triatoma dimidiata INFESTATION AND ITS INFECTION WITH Trypanosoma cruzi IN A RURAL VILLAGE OF YUCATAN, MEXICO

This study longitudinally investigated the association between Triatoma dimidiata infestation, triatomine infection with Trypanosoma cruzi and household/backyard environmental characteristics in 101 homesteads in Molas and Yucatan, Mexico, between November 2009 (rainy season) and May 2010 (dry seaso...

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Bibliographic Details
Published in:Revista do Instituto de Medicina Tropical de São Paulo
Main Authors: Edgar KOYOC-CARDEÑA, Anuar MEDINA-BARREIRO, Francisco Javier ESCOBEDO-ORTEGÓN, Jorge Carlos RODRÍGUEZ-BUENFIL, Mario BARRERA-PÉREZ, Enrique REYES-NOVELO, Juan CHABLÉ-SANTOS, Celia SELEM-SALAS, Gonzalo VAZQUEZ-PROKOPEC, Pablo MANRIQUE-SAIDE
Format: Article in Journal/Newspaper
Language:English
Published: Universidade de São Paulo (USP) 2015
Subjects:
Peridomicile
Triatoma dimidiata
Trypanosoma cruzi
Chagas disease
Arctic medicine. Tropical medicine
RC955-962
Infectious and parasitic diseases
RC109-216
Arctic
Homestead
Online Access:https://doi.org/10.1590/S0036-46652015000300015
https://doaj.org/article/12db76a41ac7492bbb3fa3e0e2a7c8a7
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Summary:This study longitudinally investigated the association between Triatoma dimidiata infestation, triatomine infection with Trypanosoma cruzi and household/backyard environmental characteristics in 101 homesteads in Molas and Yucatan, Mexico, between November 2009 (rainy season) and May 2010 (dry season). Logistic regression models tested the associations between insect infestation/infection and potential household-level risk factors. A total of 200 T. dimidiata were collected from 35.6% of the homesteads, mostly (73%) from the peridomicile. Of all the insects collected, 48% were infected with T. cruzi. Infected insects were collected in 31.6% of the homesteads (54.1% and 45.9% intra- and peridomiciliary, respectively). Approximately 30% of all triatomines collected were found in chicken coops. The presence of a chicken coop in the backyard of a homestead was significantly associated with both the odds of finding T. dimidiata (OR = 4.10, CI 95% = 1.61-10.43, p = 0.003) and the presence of triatomines infected with T. cruzi (OR = 3.37, CI 95% = 1.36-8.33, p = 0.006). The results of this study emphasize the relevance of chicken coops as a putative source of T. dimidiata populations and a potential risk for T. cruzi transmission.

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