Spatial-temporal dynamics of IgG responses among all participants across three seasons in each village. The box plot displays the interquartile range, and the whiskers indicate the range of maximum and minimum values. The dot plots display the raw data from each individual. Statistical analyses were performed using the Wilcoxon Signed-Rank Test, with significance levels indicated as p < 0.05 (*) and p < 0.001 (***), p < 0.0001 (****), while NS indicates no significant difference p > 0.05.