H3N2

H3N2 is a subtype of the influenza A virus, one of the viruses responsible for seasonal flu outbreaks. It evolves quickly, which can make it harder for vaccines to provide full protection. H3N2 spreads easily through coughing, sneezing, or touching contaminated surfaces, leading to symptoms like fever, cough, sore throat, body aches, and fatigue. It tends to cause more severe illness in the elderly, infants, and those with weakened immune systems. Annual vaccination, good hygiene, and antiviral medications can help prevent and manage H3N2 infections.