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Comparison of results from qRT-PCR, IgM ELISA and the Immunochromatography test (IC) kit when used to test confirmed CHIKV samples (n = 104). Serum samples that gave a positive result by qRT-PCR and/or IgM ELISA were considered CHIKV-positive (Group 1; dotted line = 100%). Panels show the percentage of samples positive for CHIKV antigen, RNA and IgM antibodies (Groups 1 and 2) with respect to the time of fever onset
