Improved detection of house infestations with triatomines using sticky traps: a paired-comparison trial in the Argentine Chaco
Abstract Background We conducted a matched-pairs trial of three methods for detecting house infestation with triatominae bugs in a well-defined endemic rural area in the Argentine Chaco. Methods The three methods included a simple double-sided adhesive tape (ST) installed near host resting sites; ti...
Main Authors: | , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
BMC
2020-01-01
|
Series: | Parasites & Vectors |
Subjects: | |
Online Access: | https://doi.org/10.1186/s13071-020-3891-z |
id |
doaj-c405f80ce61d42cdb0bd27d3a358ebc1 |
---|---|
record_format |
Article |
spelling |
doaj-c405f80ce61d42cdb0bd27d3a358ebc12021-01-17T12:11:23ZengBMCParasites & Vectors1756-33052020-01-0113111010.1186/s13071-020-3891-zImproved detection of house infestations with triatomines using sticky traps: a paired-comparison trial in the Argentine ChacoGustavo Fabián Enriquez0María Carla Cecere1Julián Antonio Alvarado-Otegui2Alejandra Alvedro3María Sol Gaspe4Mariano Alberto Laiño5Ricardo Esteban Gürtler6Marta Victoria Cardinal7Laboratorio de Eco-Epidemiología, Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos AiresLaboratorio de Eco-Epidemiología, Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos AiresLaboratorio de Eco-Epidemiología, Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos AiresLaboratorio de Eco-Epidemiología, Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos AiresLaboratorio de Eco-Epidemiología, Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos AiresLaboratorio de Eco-Epidemiología, Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos AiresLaboratorio de Eco-Epidemiología, Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos AiresLaboratorio de Eco-Epidemiología, Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos AiresAbstract Background We conducted a matched-pairs trial of three methods for detecting house infestation with triatominae bugs in a well-defined endemic rural area in the Argentine Chaco. Methods The three methods included a simple double-sided adhesive tape (ST) installed near host resting sites; timed-manual collections with a dislodging aerosol (TMC, the reference method used by vector control programmes), and householders’ bug notifications (HN). Triatomine infestations were evaluated in 103 sites of 54 houses, including domiciles, kitchens and storerooms. Results In domiciles where Triatoma infestans was collected, sensitivity of each single method decreased from 79% by ST and 77% by HN, to 57% by TMC, and increased to 92% when ST was combined with HN. In peridomestic kitchens and storerooms, TMC was relatively as sensitive as ST and significantly more sensitive than HN. On average, the number of bugs recovered by ST was 0.94 times that collected by TMC. The ST mainly collected early-instar nymphs whereas TMC yielded late (larger) stages. Triatomines caught by ST had significantly lower mean weight-to-length ratios and lower blood-feeding rates than those caught by TMC, suggesting the ST intercepted and trapped vectors seeking a blood meal host. Conclusions The ST may effectively replace TMC for detecting T. infestans in domiciles, and is especially apt for early detection of low-density domestic infestations in the frame of community-based surveillance or elimination programmes; decision making on whether an area should be targeted for full-coverage insecticide spraying, and to corroborate that extant conditions are compatible with the interruption of vector-borne transmission.https://doi.org/10.1186/s13071-020-3891-zChagas diseaseTriatoma infestansVector controlDetection methodsSurveillance |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Gustavo Fabián Enriquez María Carla Cecere Julián Antonio Alvarado-Otegui Alejandra Alvedro María Sol Gaspe Mariano Alberto Laiño Ricardo Esteban Gürtler Marta Victoria Cardinal |
spellingShingle |
Gustavo Fabián Enriquez María Carla Cecere Julián Antonio Alvarado-Otegui Alejandra Alvedro María Sol Gaspe Mariano Alberto Laiño Ricardo Esteban Gürtler Marta Victoria Cardinal Improved detection of house infestations with triatomines using sticky traps: a paired-comparison trial in the Argentine Chaco Parasites & Vectors Chagas disease Triatoma infestans Vector control Detection methods Surveillance |
author_facet |
Gustavo Fabián Enriquez María Carla Cecere Julián Antonio Alvarado-Otegui Alejandra Alvedro María Sol Gaspe Mariano Alberto Laiño Ricardo Esteban Gürtler Marta Victoria Cardinal |
author_sort |
Gustavo Fabián Enriquez |
title |
Improved detection of house infestations with triatomines using sticky traps: a paired-comparison trial in the Argentine Chaco |
title_short |
Improved detection of house infestations with triatomines using sticky traps: a paired-comparison trial in the Argentine Chaco |
title_full |
Improved detection of house infestations with triatomines using sticky traps: a paired-comparison trial in the Argentine Chaco |
title_fullStr |
Improved detection of house infestations with triatomines using sticky traps: a paired-comparison trial in the Argentine Chaco |
title_full_unstemmed |
Improved detection of house infestations with triatomines using sticky traps: a paired-comparison trial in the Argentine Chaco |
title_sort |
improved detection of house infestations with triatomines using sticky traps: a paired-comparison trial in the argentine chaco |
publisher |
BMC |
series |
Parasites & Vectors |
issn |
1756-3305 |
publishDate |
2020-01-01 |
description |
Abstract Background We conducted a matched-pairs trial of three methods for detecting house infestation with triatominae bugs in a well-defined endemic rural area in the Argentine Chaco. Methods The three methods included a simple double-sided adhesive tape (ST) installed near host resting sites; timed-manual collections with a dislodging aerosol (TMC, the reference method used by vector control programmes), and householders’ bug notifications (HN). Triatomine infestations were evaluated in 103 sites of 54 houses, including domiciles, kitchens and storerooms. Results In domiciles where Triatoma infestans was collected, sensitivity of each single method decreased from 79% by ST and 77% by HN, to 57% by TMC, and increased to 92% when ST was combined with HN. In peridomestic kitchens and storerooms, TMC was relatively as sensitive as ST and significantly more sensitive than HN. On average, the number of bugs recovered by ST was 0.94 times that collected by TMC. The ST mainly collected early-instar nymphs whereas TMC yielded late (larger) stages. Triatomines caught by ST had significantly lower mean weight-to-length ratios and lower blood-feeding rates than those caught by TMC, suggesting the ST intercepted and trapped vectors seeking a blood meal host. Conclusions The ST may effectively replace TMC for detecting T. infestans in domiciles, and is especially apt for early detection of low-density domestic infestations in the frame of community-based surveillance or elimination programmes; decision making on whether an area should be targeted for full-coverage insecticide spraying, and to corroborate that extant conditions are compatible with the interruption of vector-borne transmission. |
topic |
Chagas disease Triatoma infestans Vector control Detection methods Surveillance |
url |
https://doi.org/10.1186/s13071-020-3891-z |
work_keys_str_mv |
AT gustavofabianenriquez improveddetectionofhouseinfestationswithtriatominesusingstickytrapsapairedcomparisontrialintheargentinechaco AT mariacarlacecere improveddetectionofhouseinfestationswithtriatominesusingstickytrapsapairedcomparisontrialintheargentinechaco AT julianantonioalvaradootegui improveddetectionofhouseinfestationswithtriatominesusingstickytrapsapairedcomparisontrialintheargentinechaco AT alejandraalvedro improveddetectionofhouseinfestationswithtriatominesusingstickytrapsapairedcomparisontrialintheargentinechaco AT mariasolgaspe improveddetectionofhouseinfestationswithtriatominesusingstickytrapsapairedcomparisontrialintheargentinechaco AT marianoalbertolaino improveddetectionofhouseinfestationswithtriatominesusingstickytrapsapairedcomparisontrialintheargentinechaco AT ricardoestebangurtler improveddetectionofhouseinfestationswithtriatominesusingstickytrapsapairedcomparisontrialintheargentinechaco AT martavictoriacardinal improveddetectionofhouseinfestationswithtriatominesusingstickytrapsapairedcomparisontrialintheargentinechaco |
_version_ |
1724335294664146944 |