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

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

The controversial preservative thimerosal will be stripped from all influenza vaccines distributed in the United States.

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

The United States will stop distributing all influenza vaccines that contain mercury-based preservative thimerosal, marking ...

Thimerosal is an ingredient that helps keep vaccines pathogen free. Health and Human Services Secretary Robert F. Kennedy Jr., a noted vaccine skeptic, has falsely stated the ingredient is a ...

U.S. Health and Human Services Secretary Robert F. Kennedy Jr. has approved a major Centers for Disease Control & Prevention ...

The decision follows last month’s vote of the CDC’s revamped vaccine advisory committee. Thimerosal, mostly removed from ...

Advisers to the Centers for Disease Control and Prevention recommended against flu shots containing the ingredient thimerosal. Why is the additive, safely used since the 1930s, being questioned again?

Secretary Robert F. Kennedy Jr. | HHS Secretary Robert F. Kennedy Jr. has signed off on a recommendation from an advisory ...

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

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