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JUNE 30, 2025

ACIP Recommends Removing Thimerosal From the Few Remaining Flu Shot Formulations

ACIP Vote for the 2025-2026 Flu Season


Originally published by our sister publication Infectious Disease Special Edition

By Meaghan Lee Callaghan

The new members of the revamped Advisory Committee on Immunization Practices, in a vote of 5-1-1, recommended removing the preservative thimerosal from the few remaining influenza vaccine formulations that still include it. It will come into effect for the 2025-2026 flu season.

The recommendation came as three separate votes focused on three groups—children, pregnant people and