Fig. 2

Levels of Plasmodium vivax-specific IgG subclasses in plasma collected at admission and relapse. The admission and relapse episodes are represented by white and crosshatched bars, respectively, while normal controls are indicated by a black bar. The box plots show the median (50th percentile) and 25th and 75th quartiles; error bars show the 10th and 90th percentiles. Mann–Whitney U test was used to establish a significant difference (P < 0.05) between groups pairwise. Wilcoxon signed rank test was used to assess the significant differences in the specific IgG subclass levels between the admission and relapse episodes