After a sharp uptick in flu cases in mid-December 2025, flu activity across the U.S. and Canada remains high.
WASHINGTON (AP) - Flu is rising rapidly across the U.S., driven by a new variant of the virus — and cases are expected to keep growing with holiday travel. That variant, known as “subclade K,” led to ...
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New flu variant triggers high alert in UK, Canada: High fever above 104°F to severe breathing trouble - key signs of influenza H3N2
The spike in flu cases widely referred to in media reports as a "superflu" is largely driven by a newly identified subtype of ...
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