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

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 ...

The US Department of Health and Human Services has adopted a recommendation to remove a preservative called thimerosal from ...

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

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

Health and Human Services Secretary Robert F. Kennedy Jr. has signed off on a recommendation to remove thimerosal from all ...

Flu shots that have more than one dose of vaccine contain thimerosal; other versions don’t have it. HHS said Wednesday that ...

Recently removed members of a Centers for Disease Control and Prevention (CDC) vaccine advisory panel warn that Health and Human Services (HHS) Secretary Robert F. Kennedy Jr.’s move to replace ...

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

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

The move targets thimerosal, a preservative that anti-vaccine activists blame for neurodevelopmental disorders, despite ...