Figure 2.

Logarithmic antibody titers by age group in the Batwa (N = 543) and Bakiga (N = 731) in Kanungu District, Uganda, in 2014 for (A) anti-AMA-1 and (B) anti-MSP-1₁₉. An asterisk indicates that significant differences exist between populations within the same age group. Sample size by age group for Batwa: < 5 years (N = 125), 6–15 years (N = 146), 16–25 years (N = 87), 26–40 years (N = 77), > 40 years (N = 104), and Bakiga: < 5 years (N = 157), 6–15 years (N = 174), 15–25 years (N = 94), 26–40 years (N = 156), > 40 years (N = 126). AMA-1 = apical membrane antigen-1; MSP-1₁₉ = merozoite surface protein-1₁₉.