Comparison between two artificial shelter units and timed manual collections for detecting peridomestic Triatoma infestans (Hemiptera: Reduviidae) in rural northwestern Argentina

A new artificial shelter unit was compared with segments of bamboo cane lined with pleated filter paper for detecting peridomestic Triatoma infestans Klug at Amamá and nearby rural villages in northwestern Argentina. The new shelter unit consisted of a black plastic, wide-mouthed jar with a screw ca...

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Detalles Bibliográficos
Autores principales: Gürtler, R.E., Vazquez Prokopec, G.M., Ceballos, L.A., Lund Petersen, C., Salomon, O.D.
Formato: JOUR
Materias:
Argentina
Chagas disease
Sampling
Surveillance
Triatoma infestans
Vector control
animal
article
comparative study
insect control
methodology
rural population
time
Triatoma
Animals
Insect Control
Rural Population
Time Factors
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00222585_v38_n3_p429_Gurtler
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00222585_v38_n3_p429_Gurtler
record_format dspace
spelling todo:paper_00222585_v38_n3_p429_Gurtler2023-10-03T14:29:59Z Comparison between two artificial shelter units and timed manual collections for detecting peridomestic Triatoma infestans (Hemiptera: Reduviidae) in rural northwestern Argentina Gürtler, R.E. Vazquez Prokopec, G.M. Ceballos, L.A. Lund Petersen, C. Salomon, O.D. Argentina Chagas disease Sampling Surveillance Triatoma infestans Vector control animal Argentina article comparative study insect control methodology rural population time Triatoma Animals Argentina Insect Control Rural Population Time Factors Triatoma A new artificial shelter unit was compared with segments of bamboo cane lined with pleated filter paper for detecting peridomestic Triatoma infestans Klug at Amamá and nearby rural villages in northwestern Argentina. The new shelter unit consisted of a black plastic, wide-mouthed jar with a screw cap on the top, and a removable central structure made of pleated corrugated paper. In devices exposed from February to December 1999 at 24 sites positive for T. infestans by timed manual collections with an irritant in April 1999, the cumulative percentage of sites with any sign of infestation detected by the shelter unit increased from 71% after 2 mo to 96% after 10 mo, whereas bamboo cane units concurrently detected only 12-42% of the sites. Sensitivity increased with time of exposure and the abundance of T. infestans per site. In 19 sites negative for T. infestans by inspection, shelters increasingly detected infestation at 16-63% of sites after 10 mo, whereas the bamboo canes only detected one infestation. Shelter units inspected three times over an 11-mo period were significantly more sensitive than a single manual search with an irritant performed in March 2000. Our study provided conclusive field evidence that the shelter unit was more sensitive for detecting peridomestic T. infestans than were timed manual searches, the standard reference method, or bamboo cane units. Rapid timed searches by skilled bug collectors during the early surveillance phase overlooked many peridomestic populations that, in the absence of control, inevitably would increase in abundance and repopulate treated areas. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00222585_v38_n3_p429_Gurtler
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Argentina
Chagas disease
Sampling
Surveillance
Triatoma infestans
Vector control
animal
Argentina
article
comparative study
insect control
methodology
rural population
time
Triatoma
Animals
Argentina
Insect Control
Rural Population
Time Factors
Triatoma
spellingShingle Argentina
Chagas disease
Sampling
Surveillance
Triatoma infestans
Vector control
animal
Argentina
article
comparative study
insect control
methodology
rural population
time
Triatoma
Animals
Argentina
Insect Control
Rural Population
Time Factors
Triatoma
Gürtler, R.E.
Vazquez Prokopec, G.M.
Ceballos, L.A.
Lund Petersen, C.
Salomon, O.D.
Comparison between two artificial shelter units and timed manual collections for detecting peridomestic Triatoma infestans (Hemiptera: Reduviidae) in rural northwestern Argentina
topic_facet Argentina
Chagas disease
Sampling
Surveillance
Triatoma infestans
Vector control
animal
Argentina
article
comparative study
insect control
methodology
rural population
time
Triatoma
Animals
Argentina
Insect Control
Rural Population
Time Factors
Triatoma
description A new artificial shelter unit was compared with segments of bamboo cane lined with pleated filter paper for detecting peridomestic Triatoma infestans Klug at Amamá and nearby rural villages in northwestern Argentina. The new shelter unit consisted of a black plastic, wide-mouthed jar with a screw cap on the top, and a removable central structure made of pleated corrugated paper. In devices exposed from February to December 1999 at 24 sites positive for T. infestans by timed manual collections with an irritant in April 1999, the cumulative percentage of sites with any sign of infestation detected by the shelter unit increased from 71% after 2 mo to 96% after 10 mo, whereas bamboo cane units concurrently detected only 12-42% of the sites. Sensitivity increased with time of exposure and the abundance of T. infestans per site. In 19 sites negative for T. infestans by inspection, shelters increasingly detected infestation at 16-63% of sites after 10 mo, whereas the bamboo canes only detected one infestation. Shelter units inspected three times over an 11-mo period were significantly more sensitive than a single manual search with an irritant performed in March 2000. Our study provided conclusive field evidence that the shelter unit was more sensitive for detecting peridomestic T. infestans than were timed manual searches, the standard reference method, or bamboo cane units. Rapid timed searches by skilled bug collectors during the early surveillance phase overlooked many peridomestic populations that, in the absence of control, inevitably would increase in abundance and repopulate treated areas.
format JOUR
author Gürtler, R.E.
Vazquez Prokopec, G.M.
Ceballos, L.A.
Lund Petersen, C.
Salomon, O.D.
author_facet Gürtler, R.E.
Vazquez Prokopec, G.M.
Ceballos, L.A.
Lund Petersen, C.
Salomon, O.D.
author_sort Gürtler, R.E.
title Comparison between two artificial shelter units and timed manual collections for detecting peridomestic Triatoma infestans (Hemiptera: Reduviidae) in rural northwestern Argentina
title_short Comparison between two artificial shelter units and timed manual collections for detecting peridomestic Triatoma infestans (Hemiptera: Reduviidae) in rural northwestern Argentina
title_full Comparison between two artificial shelter units and timed manual collections for detecting peridomestic Triatoma infestans (Hemiptera: Reduviidae) in rural northwestern Argentina
title_fullStr Comparison between two artificial shelter units and timed manual collections for detecting peridomestic Triatoma infestans (Hemiptera: Reduviidae) in rural northwestern Argentina
title_full_unstemmed Comparison between two artificial shelter units and timed manual collections for detecting peridomestic Triatoma infestans (Hemiptera: Reduviidae) in rural northwestern Argentina
title_sort comparison between two artificial shelter units and timed manual collections for detecting peridomestic triatoma infestans (hemiptera: reduviidae) in rural northwestern argentina
url http://hdl.handle.net/20.500.12110/paper_00222585_v38_n3_p429_Gurtler
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