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The Sticky Resting Box, a new tool for studying resting behaviour of Afrotropical malaria vectors

BACKGROUND: Monitoring densities of adult mosquito populations is a major challenge in efforts to evaluate the epidemiology of mosquito-borne diseases, and their response to vector control interventions. In the case of malaria, collection of outdoor-resting Anophelines is rarely incorporated into su...

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Autores principales: Pombi, Marco, Guelbeogo, Wamdaogo M, Kreppel, Katharina, Calzetta, Maria, Traoré, Alphonse, Sanou, Antoine, Ranson, Hilary, Ferguson, Heather M, Sagnon, N’Fale, della Torre, Alessandra
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4049408/
https://www.ncbi.nlm.nih.gov/pubmed/24885432
http://dx.doi.org/10.1186/1756-3305-7-247
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author Pombi, Marco
Guelbeogo, Wamdaogo M
Kreppel, Katharina
Calzetta, Maria
Traoré, Alphonse
Sanou, Antoine
Ranson, Hilary
Ferguson, Heather M
Sagnon, N’Fale
della Torre, Alessandra
author_facet Pombi, Marco
Guelbeogo, Wamdaogo M
Kreppel, Katharina
Calzetta, Maria
Traoré, Alphonse
Sanou, Antoine
Ranson, Hilary
Ferguson, Heather M
Sagnon, N’Fale
della Torre, Alessandra
author_sort Pombi, Marco
collection PubMed
description BACKGROUND: Monitoring densities of adult mosquito populations is a major challenge in efforts to evaluate the epidemiology of mosquito-borne diseases, and their response to vector control interventions. In the case of malaria, collection of outdoor-resting Anophelines is rarely incorporated into surveillance and control, partially due to the lack of standardized collection tools. Such an approach, however, is increasingly important to investigate possible changes in mosquito behaviour in response to the scale up of Insecticide Treated Nets and Indoor Residual Spraying. In this study we evaluated the Sticky Resting Box (SRB) - i.e. a sticky variant of previously investigated mosquito Resting Box, which allows passive collection of mosquitoes entering the box – and compared its performance against traditional methods for indoor and outdoor resting mosquito sampling. METHODS: Daily collections were carried out in two neighbouring villages of Burkina Faso during rainy season 2011 and dry season 2012 by SRB located indoors and outdoors, and by Back-Pack aspiration inside houses (BP) and in ad hoc built outdoor pit-shelters (PIT). RESULTS: Overall, almost 20,000 Culicidae specimens belonging to 16 species were collected and morphologically identified. Malaria vectors included Anopheles coluzzii (53%), An. arabiensis (12%), An. gambiae s.s. (2.0%) and An. funestus (4.5%). The diversity of species collected in the two villages was similar for SRB and PIT collections outdoors, and significantly higher for SRB than for BP indoors. The population dynamics of An. gambiae s.l. mosquitoes, as obtained by SRB-collections was significantly correlated with those obtained by the traditional methods. The predicted mean estimates of An. gambiae s.l. specimens/sampling-unit/night-of-collections was 6- and 5-times lower for SRB than for BP indoors and PIT outdoors, respectively. CONCLUSIONS: Overall, the daily performance of SRB in terms of number of malaria vectors/trap was lower than that of traditionally used approaches for in- and outdoor collections. However, unlike these methods, SRB could be set up to collect mosquitoes passively over at least a week. This makes SRB a promising tool for passively monitoring anopheline resting populations, with data presented here providing guidance for how to set up SRB-based collections to acquire information comparable to those obtained with other methods.
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spelling pubmed-40494082014-06-20 The Sticky Resting Box, a new tool for studying resting behaviour of Afrotropical malaria vectors Pombi, Marco Guelbeogo, Wamdaogo M Kreppel, Katharina Calzetta, Maria Traoré, Alphonse Sanou, Antoine Ranson, Hilary Ferguson, Heather M Sagnon, N’Fale della Torre, Alessandra Parasit Vectors Research BACKGROUND: Monitoring densities of adult mosquito populations is a major challenge in efforts to evaluate the epidemiology of mosquito-borne diseases, and their response to vector control interventions. In the case of malaria, collection of outdoor-resting Anophelines is rarely incorporated into surveillance and control, partially due to the lack of standardized collection tools. Such an approach, however, is increasingly important to investigate possible changes in mosquito behaviour in response to the scale up of Insecticide Treated Nets and Indoor Residual Spraying. In this study we evaluated the Sticky Resting Box (SRB) - i.e. a sticky variant of previously investigated mosquito Resting Box, which allows passive collection of mosquitoes entering the box – and compared its performance against traditional methods for indoor and outdoor resting mosquito sampling. METHODS: Daily collections were carried out in two neighbouring villages of Burkina Faso during rainy season 2011 and dry season 2012 by SRB located indoors and outdoors, and by Back-Pack aspiration inside houses (BP) and in ad hoc built outdoor pit-shelters (PIT). RESULTS: Overall, almost 20,000 Culicidae specimens belonging to 16 species were collected and morphologically identified. Malaria vectors included Anopheles coluzzii (53%), An. arabiensis (12%), An. gambiae s.s. (2.0%) and An. funestus (4.5%). The diversity of species collected in the two villages was similar for SRB and PIT collections outdoors, and significantly higher for SRB than for BP indoors. The population dynamics of An. gambiae s.l. mosquitoes, as obtained by SRB-collections was significantly correlated with those obtained by the traditional methods. The predicted mean estimates of An. gambiae s.l. specimens/sampling-unit/night-of-collections was 6- and 5-times lower for SRB than for BP indoors and PIT outdoors, respectively. CONCLUSIONS: Overall, the daily performance of SRB in terms of number of malaria vectors/trap was lower than that of traditionally used approaches for in- and outdoor collections. However, unlike these methods, SRB could be set up to collect mosquitoes passively over at least a week. This makes SRB a promising tool for passively monitoring anopheline resting populations, with data presented here providing guidance for how to set up SRB-based collections to acquire information comparable to those obtained with other methods. BioMed Central 2014-05-29 /pmc/articles/PMC4049408/ /pubmed/24885432 http://dx.doi.org/10.1186/1756-3305-7-247 Text en Copyright © 2014 Pombi et al.; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research
Pombi, Marco
Guelbeogo, Wamdaogo M
Kreppel, Katharina
Calzetta, Maria
Traoré, Alphonse
Sanou, Antoine
Ranson, Hilary
Ferguson, Heather M
Sagnon, N’Fale
della Torre, Alessandra
The Sticky Resting Box, a new tool for studying resting behaviour of Afrotropical malaria vectors
title The Sticky Resting Box, a new tool for studying resting behaviour of Afrotropical malaria vectors
title_full The Sticky Resting Box, a new tool for studying resting behaviour of Afrotropical malaria vectors
title_fullStr The Sticky Resting Box, a new tool for studying resting behaviour of Afrotropical malaria vectors
title_full_unstemmed The Sticky Resting Box, a new tool for studying resting behaviour of Afrotropical malaria vectors
title_short The Sticky Resting Box, a new tool for studying resting behaviour of Afrotropical malaria vectors
title_sort sticky resting box, a new tool for studying resting behaviour of afrotropical malaria vectors
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4049408/
https://www.ncbi.nlm.nih.gov/pubmed/24885432
http://dx.doi.org/10.1186/1756-3305-7-247
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