For RFK Jr. and his antivax supporters and associates, aluminum adjuvants in some required children’s vaccines appear to be ...

What is thimerosal, does it have side effects and why is RFK Jr. removing the controversial preservative from the flu shot?

Vaccines are one of the greatest public health successes of modern medicine. From smallpox to polio to measles, vaccines have ...

The mercury-based ingredient has prompted concerns from some organizations, although the CDC has said there is no evidence it ...

Although it has been largely phased out of U.S. vaccines, thimerosal has long been targeted by anti-vaccine advocates.

The federal government is recommending flu vaccines remove the preservative thimerosal after Health and Human Services ...

Antivaccine activists have long linked the ingredient to autism; the CDC says there is no evidence of harm.

HHS Secretary Robert F. Kennedy Jr. endorsed the CDC's Advisory Committee on Immunization Practices (ACIP) recommendation ...

Banning vaccine ingredients without cause increases the perceived risk of vaccines,” one prominent health group said.