IFIH1 and viral infectious disease: In the presence of viral infection, viral transcripts are recognized and bound by receptors including toll-like receptors (TLRs), retinoic acid-inducible gene I (RIG-I), and melanoma differentiation-associated protein 5 (MDA5) resulting in the activation of transcription factors such as nuclear factor kappa light-chain enhancer of activated B cells (NF-κB) and interferon regulatory factor 3 (IRF-3) (33, 34).