IRS campaign, coverage, and quality
malaria
MALARIA, MAY, MALARIA
One round of indoor residual spraying was conducted in the study area before the start of the long rainy season and main malaria transmission season. The IRS campaign ran for 22 days between 15 May and 9 June 2021. It was organized by the project team in collaboration with trained experts from the National Malaria Control Programme (NMCP) and PMI VectorLink Project Benin. To ensure community participation, all consenting households in all 15 administrative villages within the entire sub-district were sprayed including clusters that were excluded from the evaluation. A total of 11,336 structures out of the 12,933 eligible structures (as defined by WHO operational guidelines Before spraying, 4 filter papers (Whatman No. 1) measuring 5 cm × 5 cm were fixed on the 4 walls (1 per wall) of one room in 5 randomly selected households/cluster for each of the 8 evaluation clusters per study arm. After spraying, they were left to dry for 2–3 h, wrapped in aluminium foil, and stored at 4 °C (± 2 °C) after which they were shipped to the Liverpool School of Tropical Medicine for chemical analysis by HPLC using validated methods for extraction and analysis of broflanilide, clothianidin and deltamethrin.