It’s not surprising that, of all the recommendations the U.S. CDC’s vaccine advisory board made at its June meeting, the first one Health and Human Services Secretary Robert Kennedy signed off on would essentially remove thimerosal from influenza vaccines in the U.S. What is surprising is the time it took for him to do so, given his long-held position on the preservative used in multidose vials and his insistence that a thimerosal presentation and vote be added to the agenda.