Flu cases surging in California as officials warn of powerful virus strain
Key Points:
- California is experiencing elevated flu activity due to a new influenza A strain, H3N2 subclade K, leading to increased flu-related cases and hospitalizations statewide, particularly in Central California and the Bay Area.
- The current flu season has resulted in the highest number of U.S. cases in over 30 years, with at least 15 million infections, 180,000 hospitalizations, and 7,400 deaths, including pediatric fatalities confirmed in California.
- Experts warn the H3N2 strain has mutated to partially evade immunity from this season’s flu vaccine, which was formulated before the strain emerged, though vaccines still reduce severe illness and hospitalizations.
- Health officials urge high-risk groups, especially children and the