Health ❯ Infectious Diseases ❯ Influenza

H3N2

Subclade K Symptoms Vaccination Epidemiology Variant K Prevention Treatment Public Health Response Prevention Measures Transmission Subtypes Complications Symptoms and Prevention Superflu Super Flu Risk Groups Subtype K Vaccine Effectiveness Outbreaks Virus Origins Transmission Methods Public Health Prevention Strategies Cepa K H3N2 K Variant Vaccination Strategies Virus Mutations Subclades Supergripe Symptoms and Treatment Gripe K Hospitalizations H3N2-K Variant Prevention Methods Public Health Recommendations Epidemic Outbreaks

Drifted H3N2 ‘Subclade K’ Drives Early U.S. Flu Uptick Before Holidays

Health agencies say the current vaccine still reduces severe outcomes despite a partial mismatch.

New H3N2 Variant Emerges as Canada’s Flu Season Starts and U.S. Activity Remains Low

New H3N2 ‘Subclade K’ Drives Early Flu Surges as U.S. Officials Urge Vaccination