Figure 2

Comparison of Plasmodium falciparum and Plasmodium vivax prevalence. Prevalence values, obtained from the mapped P. falciparum and P. vivax endemicity surfaces [19,24]. Data for P. falciparum has been standardized to the 1 to 99 years age range to reflect P. vivax data [36]. The shaded areas correspond to each species and show a smoothed approximation of the frequency distribution (a kernel density plot) of parasite prevalence within each geographic region. The black central bar represents the interquartile range and the white circles indicate the median values.