ISG15 and infection: The 17 DEGs upregulated after infection with huH1N1 were shared with the swH1N1 infection (DDX58 (RIG-I), RSAD2 (Viperin), MX2, MX1, OAS1, ANGPTL4, IRF7, ISG15, IFIT1, ISG12(A), DDX60, BST2, IFI44, XAF1, LGALS3BP, RTP4, and IFI6).