In a sweeping shift on Jan. 5, federal health officials revised the U.S. childhood immunization schedule , narrowing which vaccines are recommended for all children and moving several into a “ shared clinical decision-making ” category. As both a physician and a mother, my stomach dropped when I read the schedule for myself. With no regard for the agency’s usual expert panel process, Robert F. Kennedy Jr., U.S. Health Secretary and Jim O'Neill, the CDC’s acting director, unilaterally removed