IFIH1 and Flavivirus Infections: Viral components activating innate cells through pattern recognition receptors, such as Toll-like receptors, retinoic-acid-inducible gene I and melanoma differentiation-associated gene 5, are vital in eliciting a downstream signalling cascade, which culminates in the secretion of inflammatory proteins.<h4>Conclusion</h4>Understanding the specific mechanisms involved in the acute phase of infection is indispensable for detecting differential biomarkers against flavivirus infections as well as designing more efficient therapeutic agents and vaccines.