The expression of RIG-I and MDA5 induced by both isolated viruses was upregulated during 3 days of detection (Figures 3C,D), whereas the expression of LGP2 was upregulated during the first 3 days of infection and peaked at 24 and 48 hpi, respectively (7.85- and 6.75-fold, respectively; p < 0.05). Here, IFIH1 is linked to infection.