She takes over from a series of acting leaders, most recently NIH Director Jay Bhattacharya, who had run the agency since February. CDC recorded 2,371 confirmed cases as of July 30, 2026, and confirmed measles cases already exceed the 2025 total of 2,289, making this the highest annual count since 1991. There have been 37 new outbreaks this year, and 94 percent of confirmed cases are outbreak-associated. Frequently Asked QuestionsWho is the new CDC director? A record measles year with 2,371 confirmed cases as of July 30, the largest recorded United States cyclosporiasis outbreak, a multistate Salmonella outbreak linked to jalapeño peppers, and Ebola responses in the Democratic Republic of the Congo and Uganda.