Overview

• RFK Jr. officially signed off on the Advisory Committee on Immunization Practices’ June recommendation, making the removal of thimerosal federal policy.
• The change impacts about 4–5 percent of U.S. flu doses, mainly multi-dose vials from Sanofi and CSL Seqirus, but manufacturers say thimerosal-free supply will be uninterrupted.
• Thimerosal, an ethylmercury preservative largely phased out of childhood vaccines by 2001, remains scientifically endorsed for safety despite anti-vaccine criticism.
• Earlier in June, Kennedy dismissed all 17 CDC advisory panel members and installed his own appointees, setting the stage for the 5-1-1 vote on thimerosal removal.
• Supporters hail the decision as a precautionary step to protect public health, while critics warn it could raise costs and limit vaccine access for some groups.