Mutations in #H3N2 #flu viruses have some experts worried we're facing a second bad #influenza season. The new variant, subclade K, may be able to escape antibodies generated by previous infections or this year's flu shot. But some experts are hedging their bets. https://www.statnews.com/2025/11/20/flu-season-2025-vaccinations-still-helpful-h3n2-subclade-k/