Fig. 2
Distribution dot plot of antibody responses for children 1–5 years of age. Antibody levels are expressed as normalized OD values. Horizontal lines represent thresholds for seropositivity and are based on 3 (dashed lines) or 5 (solid lines) standard deviations (SD) plus the mean of the lower Gaussian distribution (see “Methods” section). Plots are divided by antigen: a PfMSP-119, b PfAMA-1, c PvMSP-119 and, d PvAMA-1. OD optical density, Pv P. vivax, Pf P. falciparum, AMA-1 apical membrane antigen 1, MSP-1 19 merozoite surface protein 1–19