IFNAR2 and infection: To explore whether SECoVs infection affects IFN receptors expression, we next compared the receptor expression of the three types of IFNs, including type I IFN receptors (IFNAR1 and IFNAR2), type II IFN receptors (IFNGR1 and IFNGR2), and type III IFN receptors (IL10RB and IFNLR1) (30).