Key Highlights
- Dr. Jay Bhattacharya will temporarily lead the CDC.
- He replaces Jim O’Neill, who held dual roles at CDC and Health and Human Services.
- The CDC has not had a Senate-confirmed director since August 2025.
- This leadership change is part of broader shake-ups within federal health agencies.
- Bhattacharya is the third individual to lead the CDC in a short timeframe.


