ATAD1 and infection: The geometric mean multiplicity of infection (95% confidence interval) determined by genotyping the msp1 gene for asymptomatic parasite infection in Obom in July was 2.094 (1.873–2.341), which was significantly (P < 0.0001, Mann–Whitney two-tailed test) higher than 1.397 (1.238–1.577) determined in the asymptomatic children living in Abura in the same month.