FIG.4.

Anti-WSP IgG levels are associated with the presence of hydrocele. Box and whisker plots show anti-WSP (A), antifilarial IgG1 (B), and antifilarial IgG4 (C) antibody data from men in this study stratified by infection status. Individuals with hydrocele are shown on the left, and individuals without hydrocele are shown on the right. Horizontal lines represent the 25th, 50th, and 75th percentiles of anti-WSP IgG responses, given in arbitrary units, and antifilarial responses, given in micrograms per milliliter. Vertical lines represent the nonoutlier minimum and maximum responses for each group, and circles represent outliers.