( March 30, 2026, 9:43 AM EDT) -- BOSTON — A children’s advocacy group known for questioning the safety and efficacy of vaccinations and others who claim that their interests are not properly protected by the parties in a challenge to the Centers for Disease Control and Prevention’s changes to vaccine recommendations and makeup of a vaccine advisory panel filed a notice of appeal to the First Circuit U.S. Court of Appeals seeking review of a Massachusetts federal court’s rulings denying their motion to intervene and granting a preliminary injunction....