Fig. 2: Timeline summarizing the dates of indoor residual spraying (IRS) campaigns, baseline, and evaluation periods.
From: The impact of stopping and starting indoor residual spraying on malaria burden in Uganda

Objective 1 is to assess the impact of withdrawing IRS after 5 years of sustained use; Objective 2 is to assess the impact of restarting IRS with a single round; and Objective 3 is to assess the impact of initiating and sustaining IRS. Exact dates of interventions are general; details on intervention dates by site are shown in Supplementary Fig. 1.