The CDC Has a Leadership Crisis
Briefly

The CDC Has a Leadership Crisis
"O'Neill was also the deputy secretary at HHS, the CDC's parent agency, before being named director of the National Science Foundation this week. He took over the CDC in August after Susan Monarez's short tenure at the agency. Monarez was confirmed as CDC director in July 2025 but was removed after just four weeks in the position. She testified that she was fired for refusing to blindly approve Kennedy's changes to federal vaccine policy."
"Following Jim O'Neill's departure as acting CDC director last week, National Institutes of Health director Jay Bhattacharya will now lead both agencies temporarily. It's the latest in a series of shakeups at Trump's CDC, which has lost about a quarter of its staff to mass layoffs carried out by Health and Human Services Secretary Robert F. Kennedy, Jr. last year."
Leadership turnover at the US Centers for Disease Control and Prevention has left the agency without a permanent director during Donald Trump's second term. National Institutes of Health director Jay Bhattacharya will temporarily oversee the CDC after Jim O'Neill's departure. The CDC experienced mass layoffs last year that removed about a quarter of its staff, driven by HHS Secretary Robert F. Kennedy, Jr. Susan Monarez was confirmed then removed as CDC director after four weeks, alleging she was fired for resisting vaccine policy changes. A fatal shooting occurred on the Atlanta campus during Monarez's tenure, and several senior officials resigned. A previous nominee, Dave Weldon, had his nomination withdrawn.
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