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H3N2 Strain

Flu Hospitalizations Stay High Across U.S. as H3N2 Subclade K Drives Season

Officials urge vaccination, testing, early antivirals to curb severe illness.

Flu Hospital Numbers Rebound in England as NHS Warns Winter Pressures Intensify

Flu Visits Hit Record Levels as Drifted H3N2 Variant Drives Early U.S. Surge

Flu Surge Accelerates Nationwide as New York Sets Weekly Hospitalization Record

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

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

Mutated H3N2 Strain Spurs Early Flu Rise as UK Admissions Climb and California, Chicago Flag Increases

Early UK Flu Surge Driven by Drifted H3N2 Variant Prompts Urgent Vaccine Push