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

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

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

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

U.S. Health and Human Services (HHS) Secretary Robert F. Kennedy Jr. signed off on the recommendation from an expert panel that recommended removing the mercury-based preservative from all influenza ...

Following a recommendation from a panel of CDC advisors, HHS Secretary Robert F. Kennedy Jr. on Wednesday ordered that the ...

The action will remove from use the very few flu shots that contain the contested preservative, elevating unproven fears it ...

The CDC says there is no evidence of harm from mercury-based thimerosal.

The Wall Street Journal was the first to report on Kennedy’s plan last Friday. RFK Jr. is expected to remove all 16 members ...

Following an overhaul at ACIP, the HHS secretary took the advice of the committee’s new members, saying he was acting on guidance that dated back to 1999.

RFK Jr. approves a nationwide shift to mercury-free flu vaccines, ending decades of thimerosal use amid rising safety and ...