In this episode of “Fierce Attack of Influenza A: Recognizing Virus Characteristics, Staying Alert to Hidden Risks, Scientific Response with a Method”, we dive into the current surge of Influenza A, dominated by the H3N2 strain. This episode unpacks why this variant is so aggressive, how it spreads silently before symptoms appear, and why its impact on recovery—especially the risk of delayed cardiac complications—is uniquely concerning.