High Alert: What to Know About This Year’s Flu (The “Subclade K” Strain)

calendar_today December 15, 2025 person PromptMD Urgent Care domain prompt-md

Flu season is arriving fast, and this year’s outlook is more serious than usual. A new, fast-spreading strain — Influenza A(H3N2) subclade K — is driving large outbreaks in Canada, the United Kingdom, and Japan. Early CDC data shows the same pattern beginning in the U.S., with rising positive tests, more hospitalizations, and this H3N2 […] The post High Alert: What to Know About This Year’s Flu (The “Subclade K” Strain) appeared first on PromptMD

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High Alert: What to Know About This Year’s Flu (The “Subclade K” Strain)