The role of the peridomiciliary area in the elimination of Triatoma infestans from rural Argentine communities
The purpose of this study was to identify the origin of Triatoma infestans reinfestation and study its dynamics following spraying with deltamethrin inside and around 94 houses in three rural communities in northwestern Argentina. The effectiveness of the spraying was evaluated immediately after the...
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Pan American Health Organization
1997
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ftdoajarticles:oai:doaj.org/article:1a197b45471a4c8a82038ab02e4fa67b 2023-05-15T15:17:08+02:00 The role of the peridomiciliary area in the elimination of Triatoma infestans from rural Argentine communities Cecere María C. Gürtler Ricardo E. Canale Delmi Chuit Roberto Cohen Joel E. 1997-01-01T00:00:00Z https://doaj.org/article/1a197b45471a4c8a82038ab02e4fa67b EN ES PT eng spa por Pan American Health Organization http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S1020-49891997000400003 https://doaj.org/toc/1020-4989 1020-4989 https://doaj.org/article/1a197b45471a4c8a82038ab02e4fa67b Revista Panamericana de Salud Pública, Vol 1, Iss 4, Pp 273-279 (1997) Medicine R Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 article 1997 ftdoajarticles 2022-12-31T02:15:21Z The purpose of this study was to identify the origin of Triatoma infestans reinfestation and study its dynamics following spraying with deltamethrin inside and around 94 houses in three rural communities in northwestern Argentina. The effectiveness of the spraying was evaluated immediately after the houses were sprayed and two months later. In addition, five residual peridomiciliary foci were found and sprayed, as well as three preexisting ones that had not been sprayed. To monitor reinfestation, biosensors were placed in the houses and each family was also asked to capture triatomines and keep them in plastic bags; in addition, triatomines were searched for in and around houses, using an aerosol that dislodged them from their hiding places. Selective sprayings were carried out only where a colony of T. infestans was found. During the 30 months of follow-up, the percentage of houses in which any T. infestans were captured varied between 3% and 9%. In six houses, T. infestans were captured during more than one evaluation. The number of peridomiciliary areas found to be infested (19) was double the number of infested houses (9). Colonies of T. infestans were found only in the peridomiciliary areas, where the number of T. infestans captured was six times higher than in the houses. Chickens were the host most frequently associated with peridomiciliary foci. This area was the origin and principal source of reinfestation. To reduce the speed of reinfestation and the frequency with which sprayings are needed, the following environmental and chemical control methods must be combined in the peridomiciliary area: reduce the number of hiding places of triatomines; restrict the raising of birds to structures that cannot be colonized by triatomines; apply an insecticide that is less likely to be degraded by exposure to the elements, or perform a second spraying 6 to 12 months after the first; and employ a device for early detection of the presence of T. infestans around houses. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Argentina Argentine |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Spanish Portuguese |
topic |
Medicine R Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
spellingShingle |
Medicine R Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 Cecere María C. Gürtler Ricardo E. Canale Delmi Chuit Roberto Cohen Joel E. The role of the peridomiciliary area in the elimination of Triatoma infestans from rural Argentine communities |
topic_facet |
Medicine R Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
description |
The purpose of this study was to identify the origin of Triatoma infestans reinfestation and study its dynamics following spraying with deltamethrin inside and around 94 houses in three rural communities in northwestern Argentina. The effectiveness of the spraying was evaluated immediately after the houses were sprayed and two months later. In addition, five residual peridomiciliary foci were found and sprayed, as well as three preexisting ones that had not been sprayed. To monitor reinfestation, biosensors were placed in the houses and each family was also asked to capture triatomines and keep them in plastic bags; in addition, triatomines were searched for in and around houses, using an aerosol that dislodged them from their hiding places. Selective sprayings were carried out only where a colony of T. infestans was found. During the 30 months of follow-up, the percentage of houses in which any T. infestans were captured varied between 3% and 9%. In six houses, T. infestans were captured during more than one evaluation. The number of peridomiciliary areas found to be infested (19) was double the number of infested houses (9). Colonies of T. infestans were found only in the peridomiciliary areas, where the number of T. infestans captured was six times higher than in the houses. Chickens were the host most frequently associated with peridomiciliary foci. This area was the origin and principal source of reinfestation. To reduce the speed of reinfestation and the frequency with which sprayings are needed, the following environmental and chemical control methods must be combined in the peridomiciliary area: reduce the number of hiding places of triatomines; restrict the raising of birds to structures that cannot be colonized by triatomines; apply an insecticide that is less likely to be degraded by exposure to the elements, or perform a second spraying 6 to 12 months after the first; and employ a device for early detection of the presence of T. infestans around houses. |
format |
Article in Journal/Newspaper |
author |
Cecere María C. Gürtler Ricardo E. Canale Delmi Chuit Roberto Cohen Joel E. |
author_facet |
Cecere María C. Gürtler Ricardo E. Canale Delmi Chuit Roberto Cohen Joel E. |
author_sort |
Cecere María C. |
title |
The role of the peridomiciliary area in the elimination of Triatoma infestans from rural Argentine communities |
title_short |
The role of the peridomiciliary area in the elimination of Triatoma infestans from rural Argentine communities |
title_full |
The role of the peridomiciliary area in the elimination of Triatoma infestans from rural Argentine communities |
title_fullStr |
The role of the peridomiciliary area in the elimination of Triatoma infestans from rural Argentine communities |
title_full_unstemmed |
The role of the peridomiciliary area in the elimination of Triatoma infestans from rural Argentine communities |
title_sort |
role of the peridomiciliary area in the elimination of triatoma infestans from rural argentine communities |
publisher |
Pan American Health Organization |
publishDate |
1997 |
url |
https://doaj.org/article/1a197b45471a4c8a82038ab02e4fa67b |
geographic |
Arctic Argentina Argentine |
geographic_facet |
Arctic Argentina Argentine |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Revista Panamericana de Salud Pública, Vol 1, Iss 4, Pp 273-279 (1997) |
op_relation |
http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S1020-49891997000400003 https://doaj.org/toc/1020-4989 1020-4989 https://doaj.org/article/1a197b45471a4c8a82038ab02e4fa67b |
_version_ |
1766347404793085952 |