"In September, the Advisory Committee on Immunization Practices (ACIP) ... changed its recommendations regarding several vaccines ... Although the updated recommendations have not been published in the ACIP Morbidity and Mortality Weekly Report (MMWR), the CDC immunization schedules for both COVID-19 vaccination and MMRV were updated October 7, 2025 with adopted changes to recommendations. Plan years beginning on or after October 7, 2026, must comply with the new recommendations ... (January 1, 2027 for calendar year plans)."  MORE >>