IgM and IgG antibodies in the study population.

<p>A) Overall data. Data are presented as boxplots that illustrate the medians and the maximum and minimum. B) IgM and IgG distribution by sex; C) IgM and IgG distribution by locality. <i>P</i>-values obtained on comparing the 4 post-outbreak areas with the endemic area. When comparing pairs of localities we obtained significance for IgG with the following analysis: Guayaquiles and Huancabamba (<i>P</i> = 0.0001); Los Ranchos and Huancabamba (<i>P</i> = 0.0002); Mayland and Huancabamba (<i>P</i> = 0.0201); Tunal and Huancabamba (<i>P</i><0.0001). D) IgM and IgG distribution by age groups. <i>P</i>-values obtained comparing the antibody levels of subjects between ≤ 25 years with ≥ 26 years. In panels B, C and D the data are presented as boxplots that illustrate the medians and the 25th and 75th quartiles, and the whiskers represent the 10% and 90% percentiles. Outliers are marked with circles. <i>P</i>-values were calculated using the Mann-Whitney test.