Cumulative incidence of P. falciparum gametocytemia during a 6-month malaria season after a single IV infusion of 10 mg kg -1 of CIS43LS ( n = 110), 40 mg kg -1 of CIS43LS ( n = 110) or placebo ( n = 110) during scheduled and unscheduled illness visits when malaria was suspected. Only DBS collected between days 7 and 168 were included in this analysis. Estimates of the cumulative risk of gametocytemia are plotted along with the 95% CIs (shaded areas).