( February 27, 2026, 2:59 PM EST) -- BOSTON — Both the government and physicians’ professional groups and others challenging the Centers for Disease Control and Prevention’s changes to vaccine recommendations on Feb. 26 opposed the emergency motion to intervene as defendants and counterclaim plaintiffs filed by a children’s advocacy group known for questioning the safety and efficacy of vaccinations and others who claimed that their interests were not properly protected by the current parties....