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Pediatric Vaccination Pediatric Health Vaccine Recommendations Public Health Recommendations Vaccine Development Immunity H3N2 Mutation Vaccine Strains Public Awareness

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

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

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