Impact of community-based vector control on house infestation and Trypanosoma cruzi infection in Triatoma infestans, dogs and cats in the Argentine Chaco

The relative impact of two community-based vector control strategies on house infestation by Triatoma infestans and Trypanosoma cruzi infection in bugs, domestic dogs and cats was assessed in two neighboring rural areas comprising 40 small villages and 323 houses in one of the regions most endemic f...

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Autores principales:	Cardinal, M.V., Lauricella, M.A., Marcet, P.L., Orozco, M.M., Kitron, U., Gürtler, R.E.
Formato:	JOUR
Materias:	Cats Chagas disease Dogs Risk factors Sentinel Surveillance Triatoma infestans Trypanosoma cruzi Vector control insecticide canid disease prevalence disease vector environmental management insect local participation protozoan regression analysis risk factor rural area Argentina article cat controlled study disease association dog domestic animal endemic disease female health survey high risk population household human infestation major clinical study male multivariate logistic regression analysis parasite prevalence parasite transmission practice guideline statistical analysis Animals Cat Diseases Chagas Disease Communicable Disease Control Community-Acquired Infections Dog Diseases Female Humans Insect Vectors Male Prevalence Triatoma Gran Chaco South America Animalia Canis familiaris
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_0001706X_v103_n3_p201_Cardinal
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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spelling	todo:paper_0001706X_v103_n3_p201_Cardinal2023-10-03T13:51:35Z Impact of community-based vector control on house infestation and Trypanosoma cruzi infection in Triatoma infestans, dogs and cats in the Argentine Chaco Cardinal, M.V. Lauricella, M.A. Marcet, P.L. Orozco, M.M. Kitron, U. Gürtler, R.E. Cats Chagas disease Dogs Risk factors Sentinel Surveillance Triatoma infestans Trypanosoma cruzi Vector control insecticide canid Chagas disease disease prevalence disease vector environmental management insect local participation protozoan regression analysis risk factor rural area Argentina article cat Chagas disease controlled study disease association dog domestic animal endemic disease female health survey high risk population household human infestation major clinical study male multivariate logistic regression analysis parasite prevalence parasite transmission practice guideline rural area statistical analysis Triatoma infestans Trypanosoma cruzi Animals Argentina Cat Diseases Cats Chagas Disease Communicable Disease Control Community-Acquired Infections Dog Diseases Dogs Female Humans Insect Vectors Male Prevalence Triatoma Argentina Gran Chaco South America Animalia Canis familiaris Triatoma infestans Trypanosoma cruzi The relative impact of two community-based vector control strategies on house infestation by Triatoma infestans and Trypanosoma cruzi infection in bugs, domestic dogs and cats was assessed in two neighboring rural areas comprising 40 small villages and 323 houses in one of the regions most endemic for Chagas disease in northern Argentina. The prevalence and abundance of domestic infestation were 1.5- and 6.5-fold higher, respectively, in the area under pulsed, non-supervised control actions operating under the guidelines of the National Vector Control Program (NCVP) than in the area under sustained, supervised surveillance carried out jointly by the UBA research team and NCVP. The prevalence of infestation and infection varied widely among village groups within each area. In the pulsed control area, the prevalence of infection in bugs, dogs and cats was two- to three-fold higher than in the area under sustained surveillance, most of the infected animals qualified as autochthonous cases, and evidence of recent transmission was observed. Infection was highly aggregated at the household level and fell close to the 80/20 rule. Using multiple logistic regression analysis clustered by household, infection in dogs was associated positively and significantly with variables reflecting local exposure to infected T. infestans, thus demonstrating weak performance of the vector surveillance system. For high-risk areas in the Gran Chaco region, interruption of vector-mediated domestic transmission of T. cruzi requires residual insecticide spraying that is more intense, of a higher quality and sustained in time, combined with community participation and environmental management measures. © 2007 Elsevier B.V. All rights reserved. Fil:Cardinal, M.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Lauricella, M.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Marcet, P.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Orozco, M.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Gürtler, R.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0001706X_v103_n3_p201_Cardinal
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Cats Chagas disease Dogs Risk factors Sentinel Surveillance Triatoma infestans Trypanosoma cruzi Vector control insecticide canid Chagas disease disease prevalence disease vector environmental management insect local participation protozoan regression analysis risk factor rural area Argentina article cat Chagas disease controlled study disease association dog domestic animal endemic disease female health survey high risk population household human infestation major clinical study male multivariate logistic regression analysis parasite prevalence parasite transmission practice guideline rural area statistical analysis Triatoma infestans Trypanosoma cruzi Animals Argentina Cat Diseases Cats Chagas Disease Communicable Disease Control Community-Acquired Infections Dog Diseases Dogs Female Humans Insect Vectors Male Prevalence Triatoma Argentina Gran Chaco South America Animalia Canis familiaris Triatoma infestans Trypanosoma cruzi
spellingShingle	Cats Chagas disease Dogs Risk factors Sentinel Surveillance Triatoma infestans Trypanosoma cruzi Vector control insecticide canid Chagas disease disease prevalence disease vector environmental management insect local participation protozoan regression analysis risk factor rural area Argentina article cat Chagas disease controlled study disease association dog domestic animal endemic disease female health survey high risk population household human infestation major clinical study male multivariate logistic regression analysis parasite prevalence parasite transmission practice guideline rural area statistical analysis Triatoma infestans Trypanosoma cruzi Animals Argentina Cat Diseases Cats Chagas Disease Communicable Disease Control Community-Acquired Infections Dog Diseases Dogs Female Humans Insect Vectors Male Prevalence Triatoma Argentina Gran Chaco South America Animalia Canis familiaris Triatoma infestans Trypanosoma cruzi Cardinal, M.V. Lauricella, M.A. Marcet, P.L. Orozco, M.M. Kitron, U. Gürtler, R.E. Impact of community-based vector control on house infestation and Trypanosoma cruzi infection in Triatoma infestans, dogs and cats in the Argentine Chaco
topic_facet	Cats Chagas disease Dogs Risk factors Sentinel Surveillance Triatoma infestans Trypanosoma cruzi Vector control insecticide canid Chagas disease disease prevalence disease vector environmental management insect local participation protozoan regression analysis risk factor rural area Argentina article cat Chagas disease controlled study disease association dog domestic animal endemic disease female health survey high risk population household human infestation major clinical study male multivariate logistic regression analysis parasite prevalence parasite transmission practice guideline rural area statistical analysis Triatoma infestans Trypanosoma cruzi Animals Argentina Cat Diseases Cats Chagas Disease Communicable Disease Control Community-Acquired Infections Dog Diseases Dogs Female Humans Insect Vectors Male Prevalence Triatoma Argentina Gran Chaco South America Animalia Canis familiaris Triatoma infestans Trypanosoma cruzi
description	The relative impact of two community-based vector control strategies on house infestation by Triatoma infestans and Trypanosoma cruzi infection in bugs, domestic dogs and cats was assessed in two neighboring rural areas comprising 40 small villages and 323 houses in one of the regions most endemic for Chagas disease in northern Argentina. The prevalence and abundance of domestic infestation were 1.5- and 6.5-fold higher, respectively, in the area under pulsed, non-supervised control actions operating under the guidelines of the National Vector Control Program (NCVP) than in the area under sustained, supervised surveillance carried out jointly by the UBA research team and NCVP. The prevalence of infestation and infection varied widely among village groups within each area. In the pulsed control area, the prevalence of infection in bugs, dogs and cats was two- to three-fold higher than in the area under sustained surveillance, most of the infected animals qualified as autochthonous cases, and evidence of recent transmission was observed. Infection was highly aggregated at the household level and fell close to the 80/20 rule. Using multiple logistic regression analysis clustered by household, infection in dogs was associated positively and significantly with variables reflecting local exposure to infected T. infestans, thus demonstrating weak performance of the vector surveillance system. For high-risk areas in the Gran Chaco region, interruption of vector-mediated domestic transmission of T. cruzi requires residual insecticide spraying that is more intense, of a higher quality and sustained in time, combined with community participation and environmental management measures. © 2007 Elsevier B.V. All rights reserved.
format	JOUR
author	Cardinal, M.V. Lauricella, M.A. Marcet, P.L. Orozco, M.M. Kitron, U. Gürtler, R.E.
author_facet	Cardinal, M.V. Lauricella, M.A. Marcet, P.L. Orozco, M.M. Kitron, U. Gürtler, R.E.
author_sort	Cardinal, M.V.
title	Impact of community-based vector control on house infestation and Trypanosoma cruzi infection in Triatoma infestans, dogs and cats in the Argentine Chaco
title_short	Impact of community-based vector control on house infestation and Trypanosoma cruzi infection in Triatoma infestans, dogs and cats in the Argentine Chaco
title_full	Impact of community-based vector control on house infestation and Trypanosoma cruzi infection in Triatoma infestans, dogs and cats in the Argentine Chaco
title_fullStr	Impact of community-based vector control on house infestation and Trypanosoma cruzi infection in Triatoma infestans, dogs and cats in the Argentine Chaco
title_full_unstemmed	Impact of community-based vector control on house infestation and Trypanosoma cruzi infection in Triatoma infestans, dogs and cats in the Argentine Chaco
title_sort	impact of community-based vector control on house infestation and trypanosoma cruzi infection in triatoma infestans, dogs and cats in the argentine chaco
url	http://hdl.handle.net/20.500.12110/paper_0001706X_v103_n3_p201_Cardinal
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Impact of community-based vector control on house infestation and Trypanosoma cruzi infection in Triatoma infestans, dogs and cats in the Argentine Chaco

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