Procedures
malaria, bad road
MALARIA, MAY, DISEASE
Study LLINs were distributed in January, 2019. 13 households were selected for entomological monitoring, eight main households and five additional households were randomly selected from the core area of each cluster from a census list generated during baseline enumeration. At the beginning of the household visit, we sought consent from the household heads or adult members of each household. Adult mosquitoes were collected quarterly using Centers for Disease Control and Prevention (CDC) light traps (John W Hock Company, Gainesville, FL, USA). CDC light traps were installed in a room, preferably with a single sleeping place, at the foot end, and the net found was replaced with a new standard Interceptor LLIN. Household information including net coverage and information related to household characteristics such as roofing and wall materials, type of eaves, and total number of residences were collected and recorded in an electronic form in Open Data Kit. Because of the SARS-CoV-2 pandemic, mosquito collections were suspended between March and May, 2020, thus one extra survey was carried out in year 2 and year 3 after intervention, to compensate. We provided an outline of the study design (Trial profileFor each cluster, 13 households (eight households and five extra households) were randomly selected for each survey collection round. The extra five households were visited only if one of the first eight houses was found vacant, the inhabitants refused further study, the household was not found, or the household was not visited because of a bad road. Four consecutive collection rounds in year 1 and five collection rounds in year 2 were done. A fifth round of collections was added in year 2 and year 3 to compensate time when collections were suspended (March and May) because of the SARS-CoV-2 pandemic. LLIN=long-lasting insecticidal net.Wild-collected adult female malaria vectors were morphologically identified, separating 