Fig. 1From: Soil-transmitted helminth infection in school age children in Sierra Leone after a decade of preventive chemotherapy interventionsEpidemiological coverage (%) of MDA by district and by year. a. LF MDA targeting population of five years and over; b. STH MDA targeting SAC only. WA-U: Western Area Urban; WA-R: Western Area Rural; MDA: Mass drug administrationBack to article page