Fig 1. Seroprevalence observed for the panel of antigens studied during the July 2002 andJuly 2013 cross-sectional surveys conducted in Dielmo and Ndiop, by age group.

Seroprevalence (percent positive individuals within each age group) to the set of antigens used are shown as bar plot for Dielmo (upper part) and Ndiop (lower part) in 2002 and 2013 for the different age groups <7y (white), 7–14 y (light grey), 15–29 y (dark grey and ≥30 y (black). Asterisks indicate a significant decrease of antibody prevalence within each community between 2002 and 2013 (P<10⁻²). Triangles indicate a significant inter-village difference of prevalence against SE, LSA1₄₁, PF13, PmCSP in 2002 and PmCSP in 2013. The number of individuals within each age group for each survey and the P values of the various comparisons are presented in the S1 Table.