Fig. 1

Young child age is associated with increases in blood-stage parasitaemia during acute infection, and incomplete parasite clearance post-treatment. a Study population and data collection. For each subject, the duration between V1 and V2 was 4 weeks. b Parasite load (parasites/μL in whole blood) was measured in infants and young children (“infant”) and adults by whole blood microscopy. Circular data points indicate female subjects, and triangles indicate male subjects