Ecological and sociodemographic determinants of house infestation by Triatoma infestans in indigenous communities of the Argentine Chaco.
BACKGROUND:The Gran Chaco ecoregion, a hotspot for Chagas and other neglected tropical diseases, is home to >20 indigenous peoples. Our objective was to identify the main ecological and sociodemographic determinants of house infestation and abundance of Triatoma infestans in traditional Qom popul...
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ftdoajarticles:oai:doaj.org/article:b259ca77122d495fa5e96ceabe516c78 2023-05-15T15:13:42+02:00 Ecological and sociodemographic determinants of house infestation by Triatoma infestans in indigenous communities of the Argentine Chaco. M Sol Gaspe Yael M Provecho M Victoria Cardinal M del Pilar Fernández Ricardo E Gürtler 2015-03-01T00:00:00Z https://doi.org/10.1371/journal.pntd.0003614 https://doaj.org/article/b259ca77122d495fa5e96ceabe516c78 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC4364707?pdf=render https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0003614 https://doaj.org/article/b259ca77122d495fa5e96ceabe516c78 PLoS Neglected Tropical Diseases, Vol 9, Iss 3, p e0003614 (2015) Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 article 2015 ftdoajarticles https://doi.org/10.1371/journal.pntd.0003614 2022-12-31T15:54:44Z BACKGROUND:The Gran Chaco ecoregion, a hotspot for Chagas and other neglected tropical diseases, is home to >20 indigenous peoples. Our objective was to identify the main ecological and sociodemographic determinants of house infestation and abundance of Triatoma infestans in traditional Qom populations including a Creole minority in Pampa del Indio, northeastern Argentina. METHODS:A cross-sectional survey determined house infestation by timed-manual searches with a dislodging aerosol in 386 inhabited houses and administered questionnaires on selected variables before full-coverage insecticide spraying and annual vector surveillance. We fitted generalized linear models to two global models of domestic infestation and bug abundance, and estimated coefficients via multimodel inference with model averaging. PRINCIPAL FINDINGS:Most Qom households were larger and lived in small-sized, recently-built, precarious houses with fewer peridomestic structures, and fewer livestock and poultry than Creoles'. Qom households had lower educational level and unexpectedly high residential mobility. House infestation (31.9%) was much lower than expected from lack of recent insecticide spraying campaigns and was spatially aggregated. Nearly half of the infested houses examined had infected vectors. Qom households had higher prevalence of domestic infestation (29.2%) than Creoles' (10.0%), although there is large uncertainty around the adjusted OR. Factors with high relative importance for domestic infestation and/or bug abundance were refuge availability, distance to the nearest infested house, domestic insecticide use, indoor presence of poultry, residential overcrowding, and household educational level. CONCLUSIONS AND SIGNIFICANCE:Our study highlights the importance of sociodemographic determinants of domestic infestation such as overcrowding, education and proximity to the nearest infested house, and corroborates the role of refuge availability, domestic use of insecticides and household size. These factors may be used for ... Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Argentina Argentine Chaco ENVELOPE(-60.583,-60.583,-63.033,-63.033) Pampa ENVELOPE(-57.216,-57.216,-63.883,-63.883) PLOS Neglected Tropical Diseases 9 3 e0003614 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
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Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
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Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 M Sol Gaspe Yael M Provecho M Victoria Cardinal M del Pilar Fernández Ricardo E Gürtler Ecological and sociodemographic determinants of house infestation by Triatoma infestans in indigenous communities of the Argentine Chaco. |
topic_facet |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
description |
BACKGROUND:The Gran Chaco ecoregion, a hotspot for Chagas and other neglected tropical diseases, is home to >20 indigenous peoples. Our objective was to identify the main ecological and sociodemographic determinants of house infestation and abundance of Triatoma infestans in traditional Qom populations including a Creole minority in Pampa del Indio, northeastern Argentina. METHODS:A cross-sectional survey determined house infestation by timed-manual searches with a dislodging aerosol in 386 inhabited houses and administered questionnaires on selected variables before full-coverage insecticide spraying and annual vector surveillance. We fitted generalized linear models to two global models of domestic infestation and bug abundance, and estimated coefficients via multimodel inference with model averaging. PRINCIPAL FINDINGS:Most Qom households were larger and lived in small-sized, recently-built, precarious houses with fewer peridomestic structures, and fewer livestock and poultry than Creoles'. Qom households had lower educational level and unexpectedly high residential mobility. House infestation (31.9%) was much lower than expected from lack of recent insecticide spraying campaigns and was spatially aggregated. Nearly half of the infested houses examined had infected vectors. Qom households had higher prevalence of domestic infestation (29.2%) than Creoles' (10.0%), although there is large uncertainty around the adjusted OR. Factors with high relative importance for domestic infestation and/or bug abundance were refuge availability, distance to the nearest infested house, domestic insecticide use, indoor presence of poultry, residential overcrowding, and household educational level. CONCLUSIONS AND SIGNIFICANCE:Our study highlights the importance of sociodemographic determinants of domestic infestation such as overcrowding, education and proximity to the nearest infested house, and corroborates the role of refuge availability, domestic use of insecticides and household size. These factors may be used for ... |
format |
Article in Journal/Newspaper |
author |
M Sol Gaspe Yael M Provecho M Victoria Cardinal M del Pilar Fernández Ricardo E Gürtler |
author_facet |
M Sol Gaspe Yael M Provecho M Victoria Cardinal M del Pilar Fernández Ricardo E Gürtler |
author_sort |
M Sol Gaspe |
title |
Ecological and sociodemographic determinants of house infestation by Triatoma infestans in indigenous communities of the Argentine Chaco. |
title_short |
Ecological and sociodemographic determinants of house infestation by Triatoma infestans in indigenous communities of the Argentine Chaco. |
title_full |
Ecological and sociodemographic determinants of house infestation by Triatoma infestans in indigenous communities of the Argentine Chaco. |
title_fullStr |
Ecological and sociodemographic determinants of house infestation by Triatoma infestans in indigenous communities of the Argentine Chaco. |
title_full_unstemmed |
Ecological and sociodemographic determinants of house infestation by Triatoma infestans in indigenous communities of the Argentine Chaco. |
title_sort |
ecological and sociodemographic determinants of house infestation by triatoma infestans in indigenous communities of the argentine chaco. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2015 |
url |
https://doi.org/10.1371/journal.pntd.0003614 https://doaj.org/article/b259ca77122d495fa5e96ceabe516c78 |
long_lat |
ENVELOPE(-60.583,-60.583,-63.033,-63.033) ENVELOPE(-57.216,-57.216,-63.883,-63.883) |
geographic |
Arctic Argentina Argentine Chaco Pampa |
geographic_facet |
Arctic Argentina Argentine Chaco Pampa |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
PLoS Neglected Tropical Diseases, Vol 9, Iss 3, p e0003614 (2015) |
op_relation |
http://europepmc.org/articles/PMC4364707?pdf=render https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0003614 https://doaj.org/article/b259ca77122d495fa5e96ceabe516c78 |
op_doi |
https://doi.org/10.1371/journal.pntd.0003614 |
container_title |
PLOS Neglected Tropical Diseases |
container_volume |
9 |
container_issue |
3 |
container_start_page |
e0003614 |
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1766344223564496896 |