Dr. Levi and Vicky Pebsworth, a nurse affiliated with an anti-vaccine group, voted against recommending clesrovimab; the other five members voted yes. After some confusion, the panel also voted to include the antibody in the children’s vaccine program.

A new slate of vaccine advisers to the US Centers for Disease Control and Prevention voted Thursday to recommend that Americans receive influenza vaccines that are free of thimerosal even though there is no evidence of harm from the preservative.

Taking aim at a longtime target of anti-vaccine activists, CDC advisors said Thursday that the U.S. should not administer influenza vaccines containing thimerosal, a mercury-based preservative used to protect multi-dose vials of vaccine.