( April 28, 2026, 1:12 PM EDT) -- BOSTON — Physicians’ professional groups who had sought to block recent changes to the Centers for Disease Control and Prevention’s vaccine recommendations and its advisory committee joined the federal government’s motion in the First Circuit U.S. Court of Appeals for summary disposition of the appeal of a Massachusetts federal court’s denial of a motion to intervene and moved to dismiss the would-be intervenors’ appeal of the lower court’s grant of preliminary relief....