Support WBURIt's been a week of chaos at the CDC. Here are 5 things to knowSelena Simmons-DuffinDiane WebberAugust 29, 2025 ShareJim O'Neill is the new acting director of the CDC. Here, HHS Secretary Robert F. Kennedy Jr. swears him in as deputy secretary of HHS on June 9. O'Neill will serve in both roles. (Department of Health and Human Services via AP)
