Robert F. Kennedy Jr., a longtime vaccine skeptic, seemingly reversed course and touted benefits of MMR vaccine amid deadly Texas measles outbreak.

In the 18 days since Robert F. Kennedy Jr. was sworn in as secretary of the United States Department of Health and Human Services, his department has postponed or canceled two major vaccine advisory committee meetings,

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.