Fig. 4From: Assessing the effect of indoor residual spraying (IRS) on malaria morbidity in Northern Uganda: a before and after studyMonthly change in SPR for Aduku, Gulu regional referral and St. Joseph. There was a declining trend in the SPR in the months following IRS across the 60 months study period, which shows a declining trend in the SPR percentage points from three facilities; one from each districtBack to article page