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Flu activity is ramping up early this year. Is a mutated H1N1 strain to blame?

Flu activity is ramping up early this year. Is a mutated H1N1 strain to blame?
Photo: NBC Bay Area (KNTV, NBC) · view original

If you’re surprised to hear about people getting sick with the flu before Halloween, you’re not alone. The 2026-2027 flu season appears to be off to an early and strong start, experts say. Influenza activity is still low nationally, but cases are rising quickly in many parts of the country, espe...

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