Fig. 4From: An observational analysis of the impact of indoor residual spraying in Northern, Upper East, and Upper West Regions of Ghana: 2014 through 2017IRS status of the Districts in Upper West Region, 2015–2017. Upper West was the only region to consistently employ both IRS and SMC campaigns throughout this analysis. It was also the only region to record consistent annual drops in confirmed case incidence in the DHIS2 surveillance system across all districts (b)Back to article page