IgG4 and IgG responses to Bm14 for children of different infection groups, Haiti. Closed and opened box and whisker plots represent IgG4 responses from 95 children and IgG responses from 148 children, respectively. On the left are time points A, B, and C for children who received diethylcarbamazine (DEC) or DEC/albendazole (ALB) and on the right are time points A, B, and C for children who received placebo or ALB alone. A, Negative microfilaremia and antigenemia (MF–/Og4C3–) children. B, Positive antigenemia (Og4C3+) children, who include 37% (19 of 52) positive for MF. *Denotes significantly lower levels of IgG4 or IgG responses to Bm14 at time points B or C compared with time point A in the same treatment group and same infection status. Horizontal bars in box: low, 25%; middle, median; upper, 75%. Low whisker, 5%; upper whisker, 95%. Outliers are indicated by closed circles. The number of children is listed above the box.