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Event Brief

Flu season is ‘early’ and ‘aggressive’ in NYC

A new variant called H3N2 subclade K is causing most of the illness this season.
WHO: Health officials
WHAT: Flu season is early and aggressive
WHEN: Dec 16, 2025 at 7:00 PM ET
WHERE: New York City
WHY: Due to a new variant H3N2 subclade K
Sources (1): MarketWatch

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