A similar scenario was also observed in IFN-λ mRNA expression, as well as in the expression of the antiviral restriction factor, viperin, perhaps indicating that IFN production alone is not the varying factor between these cell subtypes in respect to differential control of ZIKV infection; however, the pace of type I and III IFNs expression may be a factor. The gene discussed is IFNA1; the disease is Zika virus infectious disease.