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Larviciding intervention targeting malaria vectors also affects mosquito distribution in the city of Yaoundé, Cameroon. | LitMetric

AI Article Synopsis

Article Abstract

Although species are considered to be equally affected by control measures targeting malaria vectors, there is still not enough evidence of the impact of interventions such as larviciding on the distribution of these mosquito species. The present study assessed the impact of a larviciding trial targeting malaria vectors on mosquito species in the city of Yaoundé, Cameroon. A cluster randomized trial comparing 13 treated clusters and 13 untreated clusters was implemented. Data were collected at baseline and during the larviciding intervention, from March 2017 to November 2020. The microbial larvicide VectoMax G was applied once every 2 weeks in the intervention areas. Adult mosquitoes were collected using CDC light traps in both intervention and non-intervention areas and compared between arms. Globally, larviciding intervention was associated with 69% reduction in aquatic habitats with larvae and 36.65% reduction of adult densities in houses. Adult densities were reduced both indoors (35.26%) and outdoors (42.37%). No change in the composition of species was recorded. The study suggests a high impact of larviciding on mosquito species distribution. The impact of the intervention can be improved if typical breeding habitats including pit latrines are targeted.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10491826PMC
http://dx.doi.org/10.1016/j.crpvbd.2023.100136DOI Listing

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