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Influenza

Vaccination Flu Season H3N2 Virus Flu Vaccination H3N2 H3N2 Strain Influenza A H3N2 H3N2 Variant Epidemiology H3N2 Subclade K

CDC Reclassifies U.S. Flu Season as 'Moderately Severe' With Record Outpatient Illness

A drifted H3N2 subclade is fueling a rapid nationwide surge that the CDC expects to persist for weeks.

Flu Surge Accelerates Nationwide as New York Sets Weekly Hospitalization Record

H3N2 ‘K’ Drives Worsening U.S. Flu Season as New York Sets Weekly Record

U.S. Pediatric Flu Deaths Rise to Nine as H3N2 Surge Strains Hospitals

Flu Hospitalizations Double as H3N2 Subclade K Drives Early U.S. Surge

New York Sets Record for Weekly Flu Cases as Hospitalizations Climb

Hueytown Boy, 11, Dies After Rapid Flu Illness

New H3N2 ‘Subclade K’ Drives Early U.S. Flu Surge as New York Sets Weekly Case Record

Flu Season Accelerates as H3N2 Subclade K Becomes Dominant in the U.S.

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

Peru Confirms Two H3N2 ‘Subclade K’ Cases in Lima as Vaccination Drive Widens

WHO Says Early H3N2 ‘Subclade K’ Flu Wave Is Straining Hospitals Across Europe

Peru Confirms Two Pediatric H3N2 Subclade K Cases as Region Ramps Up Flu Precautions

Mexico Confirms First H3N2 Subclade K Case as WHO Flags Wider Global Spread

Mexico Confirms First Case as Fast-Spreading H3N2 Subclade K Drives Early Flu Surge

H3N2 ‘K’ Flu Surges as Central Florida Warns of Tridemic Risk for Disney Travelers

Drifted H3N2 ‘Subclade K’ Spreads to U.S. as Early Flu Wave Builds

Detroit Medical Center Tightens Visitor Rules as Flu Cases Climb

Russia's Flu Cases Climb With H3N2 Dominant as Early Tests Back Vaccine Fit

Doctors Urge Flu Shots for All From 6 Months as Early H3N2 Wave Builds in Europe