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. 2018 Apr 30;13(4):e0196630. doi: 10.1371/journal.pone.0196630

Fig 1. Study design.

Fig 1

* Acute phase sera refers to all available sera collected within 10 days of symptom onset. § Positive IgM: Immunoglobulin M (IgM) detected in indirect immunofluorescence assay (IFA) (Anti-CHIKV IIFT IgM/IgG, Euroimmun, Lübeck, Germany) according to manufacturer’s instructions. §§ positive RT-PCR: CHIKV RNA detected in a RT-PCR targeting the NSP-1 gene using primers and probes that detect CHIKV strain (LR2006_OPY_1, Indian Ocean Islands and the African prototype (S27, general strain)).