An early flu season means it might be time to think about a flu shot

Image: Nature
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Wires & papers of record
- Nature, Published online: 06 October 2026; doi:10.1038/d41586-026-03150-8 Cases in the Northern Hemisphere are cropping up weeks early, and they are dominated by a virus with a concerning mutation.
- Flu season typically starts in October or November. But it looks like the flu started to pick up in September this year.