Introduction
malaria
MALARIA, WEST
Long-lasting insecticidal nets (LLINs) and indoor residual spraying (IRS) remain the two pillars on which malaria vector control relies globallyHuman landing catches (HLC) involve the collection of mosquitoes from the legs of a collector, using a flashlight and a manual aspirator. HLCs are considered the gold standard method given that it provides a direct measurement of the frequency of person-vector contactThe CDC light trap is a simple alternative which is less expensive, easy to standardise and can be deployed at large scalePSCs involves spreading white sheets over the floor and furniture of houses early in the morning- whilst windows, doors and openings are closed. Aerosol pyrethrum insecticide is sprayed inside the house and after 10–15 min, mosquitoes fallen on the sheets are collected and storedPrevious studies comparing the efficiency of different collection methods reported that CDC light traps and PSCs collected a lower number of In large vector controls trials, the choice of collection method varies, often depending on the acceptability of the method by the country ethics team and/or the size of the trial, with HLCs mainly being used in West African countriesThe present study is part of a large three arm cluster randomized controlled trial (RCT) assessing the efficacy of two dual-active ingredient (dual-a.i.) LLINs in Benin on malaria incidence, prevalence and transmission