The attempted ousting of the director of the Centers for Disease Control and Prevention (CDC) and resignations of four high-profile officials on Wednesday were the latest developments in turmoil that has been plaguing the federal health agency. Over the past few months, the CDC has seen several resignations, mass layoffs, shakeups of key committees and major changes in vaccine policy. At the center is Health and Human Services (HHS) Secretary Robert F. Kennedy Jr., who has claimed he wants to restore trust in the CDC and weed out alleged corruption. Here is a timeline of changes that have occurred at CDC. Nov. 22, 2024 Then-President-elect Donald Trump nominates Dr. Dave Weldon to lead the CDC. Jan. 23, 2025 Trump selects Susan Monarez to be acting CDC director. Feb. 18, 2025 Dr. Nirav Sha

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