Figure 3

(1) Annual confirmed outpatient cases by facility and (2) annual parasite index (API) by district after imputing missing facility-month values, three-year average 2009–2011, Zambia.
(1) Annual confirmed outpatient cases by facility and (2) annual parasite index (API) by district after imputing missing facility-month values, three-year average 2009–2011, Zambia.