Centers for Disease Control and Prevention · Public domain

A physician-scientist and HIV/AIDS expert who served as the 19th director of the U.S. Centers for Disease Control and Prevention from 2021 to 2023, leading the agency through the ongoing coronavirus pandemic and its politically fraught aftermath. Before that appointment she chaired the Division of Infectious Diseases at Massachusetts General Hospital and taught as a professor of medicine at Harvard Medical School. She stepped down from the CDC in 2023 after guiding the agency through one of the most difficult stretches in its history.