IgG antibody responses to merozoite antigens (A) and <i>P. falciparum</i> Infected Erythrocytes (B) in immigrants (Immigr) and travelers (Trav) with clinical malaria.

<p>IgG levels were determined at the acute episode of malaria (day 0, black boxes) and at convalescence (day 7, white boxes). Data are presented as boxplots that illustrate the medians and the 25^th and 75^th quartiles, and the whiskers represent the 10% and 90% percentiles. Outliers are marked with circles. <i>P</i>-values were calculated using the Wilcoxon Rank Sum test. Cutoff values for seroprevalences were 238.02 AU for AMA-1 3D7, 1134.73 AU for AMA-1 FVO, 921.18 AU for MSP-1₄₂ 3D7, 638.33 AU for MSP-1₄₂ FVO,3110.36 AU for EBA-175, 1572.55 AU for DBL-α, 36.88 MFI for IE_Trav1, 38.55 MFI for IE_Trav2, 24.75 MFI IE_Trav3, 14.23 MFI for CS2, 19.92 MFI for R29, 8.69 MFI for E_Ch1, 1.98 MFI for IE_Ch2, and 5.54 MFI for IE_Woman.