Health ❯ Infectious Diseases ❯ Influenza

Influenza A

H3N2 Subclade K H3N2 Variant H3N2 Subclade K Subvariant H3N2 K Subtypes Epidemiology Subclade K (H3N2) Public Health Impact Complications H3N2 Variant K Super-K Vaccination Gripe K

Drifted H3N2 Subclade K Drives Early Flu Surge as New York ER Visits Hit Decade High

Despite reduced protection against infection, this season’s flu shots still lower the risk of severe illness.

Flu Surges Nationwide as H3N2 Subclade K Dominates, Straining Hospitals Before Holidays