Spatial distributions of Plasmodium falciparum (A) and Plasmodium vivax (B) haplotypes in Temotu Province. A map of the Temotu Province is shown in the upper left panel while enlarged maps of particular islands are shown in the right and lower panel. Villages where parasites were genotyped are marked on the map. The type and frequency of haplotypes at each village are represented by a pie chart. The size of the pie chart is proportional to the number of parasites typed. White portions within pies indicate unique haplotypes observed once, while coloured portions indicate haplotypes observed more than once. Identical haplotypes are represented by the same colour. In Figure 4A, dominant P. falciparum haplotypes PfH3, PfH4, PfH6 and PfH11 are represented by blue, red, green and purple, respectively.