A CDC panel’s vote to stop recommending thimerosal containing flu shots would have limited impact, but it illustrates how the anti-vaccine movement is achieving its goals.ATLANTA — Federal vaccine advisers installed by Health and Human Services Secretary Robert F. Kennedy Jr. voted Thursday to effectively remove an ingredient from flu shots, achieving a longtime, controversial goal of anti-vaccine activists and illustrating how their priorities are becoming official government guidance.The vote to no longer recommend influenza vaccines that contain the preservative thimerosal, based on the presentation of a single vaccine critic, is likely to have limited impact because the vast majority...