Figure 4

The distribution of seroprevalence in children aged 1-10 (inclusive) in settlements on Tanna. Seroprevalence to specific P. falciparum antigens (MSP-1₁₉ and/or AMA-1) in children aged 1-10 (inclusive) is plotted in figure 4a and the equivalent for P.vivax in Figure 4b. Young children were chosen to represent local transmission as they are less likely to have travelled to areas of higher transmission. In some cases, under 10 children were sampled from a single village- these are represented by smaller circular symbols, whilst the larger symbols represent villages where more than ten, and up to 48 children were sampled.