The justices ruled that a key preventive health task force has authority because it is appointed by the Health and Human Services secretary. Some experts worry that RFK Jr. could politicize it.

The health secretary has made many inaccurate statements about vaccines. But the science is clear that vaccines have dramatically reduced childhood illness, disability and death.

There’s no solid evidence that thimerosal harms children. It was removed from almost all vaccines more than 20 years ago out of an abundance of caution, but RFK Jr.’s hand-picked vaccine advisory committee is looking into it.

The same tools that companies use to sell products can be used to encourage people to get vaccinated, get a colonoscopy or get treated for an infection.

The Advisory Committee on Immunization Practices guides the CDC’s hand on vaccine policy, but some of its new members have voiced anti-vaccine views.

Vaccine hesitancy isn’t a moral failure – it’s a property of a system in which people must balance personal and collective interests.

Public health experts and professional health care associations have expressed concern that the guidance goes against research on the vaccine’s benefits in pregnancy.

The US withdrew from treaty negotiations on President Trump’s first day in office.

The FDA’s new framework for COVID-19 vaccines breaks from established procedure for how the government establishes vaccine guidelines.

The FDA’s new framework for COVID-19 vaccines breaks from established procedure for how the government establishes vaccine guidelines.