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. 2016 Jan 28;54(2):412–422. doi: 10.1128/JCM.02469-15

FIG 4.

FIG 4

P/N values of VLP- and NS1-MAC-ELISAs and the ratios of JEV-to-WNV P/N value (JEV/WNV IgM ratio) and WNV-to-JEV P/N value (WNV/JEV IgM ratio). (A and B) P/N values (upper panel) and JEV/WNV IgM ratios (lower panel) of VLP- (A) and NS1-MAC-ELISAs (B) using JEV and WNV antigens on JEV-infected human sera. (C and D) P/N values (upper panel) and WNV/JEV IgM ratios (lower panel) of VLP-MAC-ELISA (C) and NS1-MAC-ELISA (D) using JEV and WNV antigens on WNV-infected human sera. The open circles indicate the P/N values obtained by using JEV antigens, and the closed circles indicate the P/N values obtained by using WNV antigens. The JEV/WNV and WNV/JEV IgM ratios are indicated with open and closed diamonds, respectively. All data points were obtained from the results from two independent experiments in duplicates. The dotted lines denote the cutoff values of ≥3.0 for P/N and >1.0 for JEV/WNV and WNV/JEV IgM ratios.