In all violin plots, measurement data (points) with median value (center line), mean value (cross marker), minimum, first quartile, median, third quartile and maximum are presented. Zika IgG/IgM levels measured in different patient cohorts were compared using an unpaired t-test with confidence intervals of 98%. Results were considered to be significant at p < 0.02. ROC curve, area under curve (AUC), and optimized cutoff were carried out with R software.
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