However, immunofluorescence staining for ZIKV NS3 antigen showed that the infection rate between MR766 ZIKV-infected hPSCs-HLCs and PRVABC59 ZIKV-infected hPSC-HLCs was comparable: 6.4 ± 1.0% and 5.0 ± 2.4% of the HLCs were ZIKV NS3 positive, respectively (Fig 1B and 1D). Here, KRAS is linked to infection.