1 of 1
Story summary
- Flu cases surged in the United States, with hospitalizations rising to over 33,000 by December 2025, and vaccination rates around 40%.
- The Centers for Disease Control and Prevention (CDC) reported over 11 million flu cases and more than 5,000 deaths this season.
- The spike is largely caused by the new subclade K, not well covered by this year's flu vaccine.
