Fewer Vaccines, More Questions: The Fight Over America's Childhood Immunization Schedule

The childhood vaccine schedule is changing, and the debate is just getting started.

For decades, the CDC's Advisory Committee on Immunization Practices set the standard for pediatric immunization in the United States. Now, sweeping revisions to the schedule are raising urgent questions about what those changes mean for children's health.

The most significant shift: the recommended schedule has been scaled back from coverage for 18 diseases to just 11. Several vaccines, including those for rotavirus, COVID-19, influenza, hepatitis A, hepatitis B, and meningococcal disease, have been moved out of the universal recommendation category and into a new tier called shared clinical decision-making.

The phrase may sound measured, but its implications are anything but. For clinicians and families alike, it signals vaccines once considered standard of care may no longer be automatically recommended, leaving the decision in the hands of individual providers and parents, without clear universal guidance to lean on.

The result has been widespread uncertainty. Pediatricians are navigating conversations with families who want answers. Parents are questioning what their children actually need. Public health experts are closely monitoring whether reduced vaccination rates follow.

To make sense of the moment, we convened a panel.

Understanding and Navigating 2026 Immunization Schedules brings together leading voices in pediatric medicine, infectious disease, and public health pharmacy:

• Jacinda Abdul-Mutakabbir, PharmD, MPH, an associate professor of Clinical Pharmacy at UC San Diego
• Sharon Nachman, MD, chief of the Division of Pediatric Infectious Diseases at Stony Brook Children's Hospital
• Mary Koslap-Petraco, DNP, PNP-BC, CPNP, a clinical assistant professor at Stony Brook University School of Nursing
• William Schaffner, MD, a professor of Medicine in the Division of Infectious Diseases at the Vanderbilt University School of Medicine

References:

1. Centers for Disease Control and Prevention. Recommended child and adolescent immunization schedule for ages 18 years or younger, United States, 2025. MMWR Morb Mortal Wkly Rep. 2025. https://www.cdc.gov/vaccines/schedules

2. Salmon DA, Teret SP, MacIntyre CR, Salisbury D, Burgess MA, Halsey NA. Compulsory vaccination and conscientious or philosophical exemptions: past, present, and future. Pediatrics. 2006;117(5):1428-1429. doi:10.1542/peds.2005-2548

3. Omer SB, Salmon DA, Orenstein WA, deHart MP, Halsey N. Vaccine refusal, mandatory immunization, and the risks of vaccine-preventable diseases. N Engl J Med. 2009;360(19):1981-1988. doi:10.1056/NEJMsa0806477