The measles outbreak in Texas has sparked debate over the use of vitamin A, with some health experts warning it may not be effective.

The Health and Human Services Department is reviewing contracts and moving to replace vaccine advisers in Robert F. Kennedy Jr.’s first few weeks at the helm.

Robert F. Kennedy Jr. has expressed divisive ideas about vaccines, but some applaud his efforts to target ultra-processed foods in Americans' diets.

Health and Human Services Secretary Robert F. Kennedy, Jr. is urging people to receive measles vaccinations amid an outbreak after he doubted their efficacy for years. Senior Scholar at the Johns Hopkins University Center for Health Security Dr.