Improved BioGents® Sentinel trap with heat (BGSH) for outdoor collections of Anopheline species in Burkina Faso and Mali, West Africa

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dc.contributor.authorGuindo, Amadou
dc.contributor.authorEpopa, Patric Stephane
dc.contributor.authorSidy Doumbia, Sidy
dc.date.accessioned2023-06-10T10:43:28Z
dc.date.available2023-06-10T10:43:28Z
dc.date.issued2021-01-28
dc.description.abstractBackground: Since the late 1990s, malaria control programmes have relied extensively on mass bednet distribution and indoor residual spraying. Both interventions use pesticides and target mosquitoes coming indoors either to feed or to rest. Unfortunately, these intensified vector control campaigns have resulted in mosquito populations with high levels of resistance to most of the chemical compounds used against them and which are increasingly exophagic and exophillic, hence difficult to monitor indoors. Consequently, there is an urgent need for novel tools to sample outdoor anopheline populations for monitoring interventions and disease surveillance programmes. Methodologies: In this study, we tested several modifications and configurations of the BioGents® Sentinel (BGS) trap, designed with the aim to increase its efficacy for sampling malaria vector species. Traps were used with chemical attractants and CO2, and the impacts of trap position, trap colour contrast combination and the addition of a heat source were tested in two studies conducted in the Sudano-Sahelian region of Burkina Faso and Mali. Results: The results show that of all the configurations tested, the addition of a heat source to the BGS trap with the original colour combination and an upward positioning resulted in a 1.8- and 5.9-fold increase in host-seeking Anopheles gambiae (s.l.) females in the experiments performed in Burkina Faso and Mali, respectively. BGS with heat traps, referred to as BGSH traps, captured An. gambiae (s.l.), An. pharoensis, An. coustani, Culex and Mansonia spp. Importantly, the results suggest that their efficacy does not depend on the close proximity of nearby hosts in houses. Conclusions: The results suggest that BGSH traps can be an effective scalable tool for sampling outdoor anopheline vector populations. Further developments enabling CO2 and heat generation for longer periods of time would further improve the trap's versatility for large-scale surveillance programmes.en_US
dc.identifier.issn1756-3305
dc.identifier.urihttp://hdl.handle.net/123456789/1941
dc.language.isoenen_US
dc.publisherParasites Vectorsen_US
dc.relation.ispartofseriesParasites Vectors;(2021) 14:
dc.subjectAnopheles gambiae (s.l.)en_US
dc.subjectCounter-flow trapsen_US
dc.subjectExophagyen_US
dc.subjectHeat attractionen_US
dc.subjectHost-findingen_US
dc.subjectMalariaen_US
dc.subjectOutdoor bitingen_US
dc.subjectSurveillance.en_US
dc.subjectAbdoul‑Azize Millogoen_US
dc.subjectBrehima Dialloen_US
dc.subjectACE: Bio-technological Innovation for the Elimination of Vector- Borne Diseasesen_US
dc.subjectCEA-ITECH_MTVen_US
dc.subjectUniversité Nazi Bonien_US
dc.titleImproved BioGents® Sentinel trap with heat (BGSH) for outdoor collections of Anopheline species in Burkina Faso and Mali, West Africaen_US
dc.typeArticleen_US
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