Figure 2From: Impact of repeated four-monthly anthelmintic treatment on Plasmodiuminfection in preschool children: a double-blind placebo-controlled randomized trial (A) Prevalence rates ( Plasmodium spp .) and (B) mean malaria parasite density in treatment (solid line) and placebo (dotted line) groups during the follow-up period. Treatment group n = 158, Placebo group n = 162.Back to article page