Fig. 2

a P. falciparum parasite prevalence estimated by microscopy and PCR. Giemsa stained thick blood smears from samples collected monthly from a set of children were read and used to estimate parasite prevalence. PCR analysis of gDNA extracted from these same samples was also used to estimate parasite prevalence. b The number of times any particular child was classified as P. falciparum positive by either microscopy or PCR over the 4 month period was documented