IFNAR2 and COVID-19: We aimed to evaluate the association of IFNAR2 SNVs (rs2236757, rs1051393, rs3153, rs2834158, and rs2229207) with COVID-19 mortality and to assess if there was a relation between the genetic variants and/or the clinical outcome, with the levels of sIFNAR2 in plasma samples from hospitalized subjects with severe COVID-19.