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Flu Vaccine

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

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

New York Sets Record for Weekly Flu Cases as Hospitalizations Climb

Norovirus Activity Climbs Nationwide as LA County Wastewater Signals Surge

Severe Flu in Pregnancy Lets Large Molecules Reach Fetal Brains in Mouse Study