Figure 3

Relationship between parasite density and household exposure. A – Boxplot of log transformed parasite densities over different exposure categories (based on quintiles). Black lines indicate median values, red lines indicate mean values. B – The proportion of subpatent (<100 parasites/μl) infections over different exposure categories. C – Boxplot of log transformed parasite densities over different age categories. D – The proportion of subpatent (<100 parasites/μl) infections over different age categories.