The role of human and mosquito behaviour in the efficacy of a house-based intervention

Barreaux Antoine, Oumbouke Welbeck A., Brou N'Guessan, Tia Innocent Zran, Ahoua Alou Ludovic P., Doudou Dimi Théodore, Koffi Alphonsine A., N'Guessan Raphaël, Sternberg Eleanore D., Thomas Matthew B.. 2021. The role of human and mosquito behaviour in the efficacy of a house-based intervention. Philosophical Transactions - Royal Society. Biological Sciences, 376 (1818):20190815, 11 p.

Quartile : Q1, Sujet : BIOLOGY

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Résumé : Housing improvement such as blocking eaves and screening windows can help in reducing exposure to indoor biting mosquitoes. The impacts of physical barriers could potentially be boosted by the addition of a mechanism that kills mosquitoes as they attempt to enter the house. One example is to combine household screening with EaveTubes, which are insecticide-treated tubes inserted into closed eaves that attract and kill host-searching mosquitoes. The epidemiological impact of screening + EaveTubes is being evaluated in a large cluster randomized trial in Cote d'Ivoire. The study presented here is designed as a complement to this trial to help better understand the functional roles of screening and EaveTubes. We began by evaluating householder behaviour and household condition in the study villages. This work revealed that doors (and to some extent windows) were left open for large parts of the evening and morning, and that even houses modified to make them more 'mosquito proof' often had possible entry points for mosquitoes. We next built two realistic experimental houses in a village to enable us to explore how these aspects of behaviour and household quality affected the impact of screening and EaveTubes. We found that screening could have a substantial impact on indoor mosquito densities, even with realistic household condition and behaviour. By contrast, EaveTubes had no significant impact on indoor mosquito density, either as a stand-alone intervention or in combination with screening. However, there was evidence that mosquitoes recruited to the EaveTubes, and the resulting mortality could create a community benefit. These complementary modes of action of screening and EaveTubes support the rationale of combining the technologies to create a 'Lethal House Lure'.

Mots-clés Agrovoc : comportement humain, épidémiologie, malaria, Culicidae, vecteur de maladie, local à stabulation libre

Mots-clés géographiques Agrovoc : Côte d'Ivoire

Mots-clés libres : Housing improvement, Vector control, Window Screening, Eave tubes, Mosquito behaviour, Human behaviour

Agences de financement hors UE : Bill and Melinda Gates Foundation, U.S. Department of Agriculture

Auteurs et affiliations

• Barreaux Antoine, Pennsylvania State University (USA) ORCID: 0000-0001-5822-761X - auteur correspondant
• Oumbouke Welbeck A., IPR (CIV)
• Brou N'Guessan, IPR (CIV)
• Tia Innocent Zran, IPR (CIV)
• Ahoua Alou Ludovic P., IPR (CIV)
• Doudou Dimi Théodore, UAO (CIV)
• Koffi Alphonsine A., IPR (CIV)
• N'Guessan Raphaël, IPR (CIV)
• Sternberg Eleanore D., Pennsylvania State University (USA)
• Thomas Matthew B., Pennsylvania State University (USA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/609731/)

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