Chagas disease in north-west Argentina: Risk of domestic reinfestation by triatoma infestans after a single community-wide application of deltamethrin
The risk of domestic reinfestation by Triatoma infestans after a single community-wide application of deltamethrin (2·5% suspension concentrate at 25 mg active ingredient/m2) was studied in Amamá, north-west Argentina, where no insecticide spraying had been done by official control services. The per...
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1994
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00359203_v88_n1_p27_Giirtler http://hdl.handle.net/20.500.12110/paper_00359203_v88_n1_p27_Giirtler |
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paper:paper_00359203_v88_n1_p27_Giirtler |
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paper:paper_00359203_v88_n1_p27_Giirtler2023-06-08T15:01:53Z Chagas disease in north-west Argentina: Risk of domestic reinfestation by triatoma infestans after a single community-wide application of deltamethrin deltamethrin insecticide argentina article chagas disease household human infestation insect control regression analysis risk triatoma infestans Animal Argentina Chagas Disease Insect Control Insect Vectors Insecticides, Botanical Pyrethrins Risk Factors Support, Non-U.S. Gov't Triatoma Insecta Triatoma infestans The risk of domestic reinfestation by Triatoma infestans after a single community-wide application of deltamethrin (2·5% suspension concentrate at 25 mg active ingredient/m2) was studied in Amamá, north-west Argentina, where no insecticide spraying had been done by official control services. The percentage of infested houses fell from 88% before spraying in 1985 to nil during the 6 months after spraying, and thereafter increased from 5% in 1986 to 96% before a second treatment in 1992, fitting closely to a logistic model (r2 = 0·997). Significant risk factors associated with domestic reinfestation determined from stepwise logistic regression and one-factor analysis were the density of T. infestans in bedrooms just before spraying and the surface structure of indoor walls. Peak densities of bugs in 1988–1989 significantly differed between levels of both risk factors. Our study suggests the existence of stable determinants of infestation linked to the household which, in the absence of effective control measures, would also determine the speed of house recolonization and the ensuing bug densities. Plastering of mud walls before application of insecticides to all domestic and peridomestic structures is supported by the study. © 1994 Oxford University Press. 1994 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00359203_v88_n1_p27_Giirtler http://hdl.handle.net/20.500.12110/paper_00359203_v88_n1_p27_Giirtler |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
deltamethrin insecticide argentina article chagas disease household human infestation insect control regression analysis risk triatoma infestans Animal Argentina Chagas Disease Insect Control Insect Vectors Insecticides, Botanical Pyrethrins Risk Factors Support, Non-U.S. Gov't Triatoma Insecta Triatoma infestans |
| spellingShingle |
deltamethrin insecticide argentina article chagas disease household human infestation insect control regression analysis risk triatoma infestans Animal Argentina Chagas Disease Insect Control Insect Vectors Insecticides, Botanical Pyrethrins Risk Factors Support, Non-U.S. Gov't Triatoma Insecta Triatoma infestans Chagas disease in north-west Argentina: Risk of domestic reinfestation by triatoma infestans after a single community-wide application of deltamethrin |
| topic_facet |
deltamethrin insecticide argentina article chagas disease household human infestation insect control regression analysis risk triatoma infestans Animal Argentina Chagas Disease Insect Control Insect Vectors Insecticides, Botanical Pyrethrins Risk Factors Support, Non-U.S. Gov't Triatoma Insecta Triatoma infestans |
| description |
The risk of domestic reinfestation by Triatoma infestans after a single community-wide application of deltamethrin (2·5% suspension concentrate at 25 mg active ingredient/m2) was studied in Amamá, north-west Argentina, where no insecticide spraying had been done by official control services. The percentage of infested houses fell from 88% before spraying in 1985 to nil during the 6 months after spraying, and thereafter increased from 5% in 1986 to 96% before a second treatment in 1992, fitting closely to a logistic model (r2 = 0·997). Significant risk factors associated with domestic reinfestation determined from stepwise logistic regression and one-factor analysis were the density of T. infestans in bedrooms just before spraying and the surface structure of indoor walls. Peak densities of bugs in 1988–1989 significantly differed between levels of both risk factors. Our study suggests the existence of stable determinants of infestation linked to the household which, in the absence of effective control measures, would also determine the speed of house recolonization and the ensuing bug densities. Plastering of mud walls before application of insecticides to all domestic and peridomestic structures is supported by the study. © 1994 Oxford University Press. |
| title |
Chagas disease in north-west Argentina: Risk of domestic reinfestation by triatoma infestans after a single community-wide application of deltamethrin |
| title_short |
Chagas disease in north-west Argentina: Risk of domestic reinfestation by triatoma infestans after a single community-wide application of deltamethrin |
| title_full |
Chagas disease in north-west Argentina: Risk of domestic reinfestation by triatoma infestans after a single community-wide application of deltamethrin |
| title_fullStr |
Chagas disease in north-west Argentina: Risk of domestic reinfestation by triatoma infestans after a single community-wide application of deltamethrin |
| title_full_unstemmed |
Chagas disease in north-west Argentina: Risk of domestic reinfestation by triatoma infestans after a single community-wide application of deltamethrin |
| title_sort |
chagas disease in north-west argentina: risk of domestic reinfestation by triatoma infestans after a single community-wide application of deltamethrin |
| publishDate |
1994 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00359203_v88_n1_p27_Giirtler http://hdl.handle.net/20.500.12110/paper_00359203_v88_n1_p27_Giirtler |
| _version_ |
1768545591881629696 |