Robert F. Kennedy Jr.As the U.S. Health Secretary

THE SENATE CONFIRMED ROBERT F. Kennedy Jr., one of country's most notorious vaccine skeptics, to run the U.S. Department of Health and Human Services (HHS) on Feb. 13, sparking outrage among public-health experts who worry that Kennedy will harm public health and further erode trust in science and medicine.

- CHANTELLE LEE

Kennedy is sworn in as Health and Human Services Secretary in the Oval Office on Feb. 13