Fig. 2
From: Future developments in biosensors for field-ready Zika virus diagnostics

Flow diagram of gold standard ZIKV detection by patient type and time from onset of symptoms. RT-qPCR detection is typically used in the first 2Â weeks of illness and IgM ELISA after the first 2Â weeks or when RT-qPCR is negative. PRNT assay should be used as a final test if an ELISA assay returns positive or inconclusive