Impact of physicochemical parameters of Aedes aegypti breeding habitats on mosquito productivity and the size of emerged adult mosquitoes in Ouagadougou City, Burkina Faso

• DOI: 10.1186/s13071-022-05558-3
• Publication Date: 2022-12-20T15:03:55Z
• Authors: Wendegoudi Mathia...; Kobié Hyacinthe Toé; Aboubacar Sombié; Mafalda Viana; Clarisse Bougouma; Antoine Sanon; David Weetman; Philip J. McCall; Hirotaka Kanuka; Athanase Badolo
• Keywords: Wet season

Abstract Background Outbreaks of dengue fever caused by viruses transmitted Aedes aegypti mosquitoes are repeated occurrences in West Africa. In recent years, Burkina Faso has experienced major outbreaks, most notably 2016 and 2017 when 80% cases were recorded Ouagadougou City (Central Health Region). order to better understand the ecology this vector provide information for use developing control measures, a study on characteristics container breeding sites productivity such sites, as measured abundance immature stages resultant adult body size, was undertaken three health districts (Baskuy, Bogodogo Nongremassom) Ouagadougou. Methods Adult collected indoors outdoors 643 households during rainy season from August October 2018. The presence water containers systematically examined or absence larvae. Characteristics including size temperature, pH conductivity contained within, well volume water. Traditional Stegomyia indices calculated quantitative indicators risk outbreaks; generalised mixed models fitted larval pupal densities, contribution each covariate model evaluated Z -value associated P -value. Results A total 1061 inspected, which 760 Ae. (‘positive’ containers). frequent found district tyres both medium (buckets/cans/pots) large (bins/barrels/drums) containers; these also productive habitats types that frequently tested positive. Of indices, Breteau, House Container exceeded WHO thresholds. Generalised linear showed abundances with type, physicochemical collection month, but there significant differences among districts. positively type diameter container, electrical water, negatively temperature level exposure sunlight. Conclusion This provides data putative determinants regarding stages. These useful proliferation. results suggest identifying targeting could contribute strategies Faso. Graphical