18 Down to 11: What Changed in the Childhood Vaccine Schedule

The federal childhood vaccine schedule is open for public comment, and the window shuts on September 20. On August 21, the Department of Health and Human Services posted a request for information asking Americans — parents, pediatricians, nurses, insurers, anyone with an opinion — to weigh in on how federal vaccine advice should be sorted and described. It reads like paperwork. It isn't. It helps decide which shots your doctor treats as standard and which ones turn into a discussion.

The request follows an executive order President Trump signed on August 10, titled "Delivering Gold Standard Childhood Vaccine Recommendations for Americans." That order trims the list of diseases every child should be vaccinated against down to 11: measles, mumps, rubella, diphtheria, tetanus, pertussis, polio, Haemophilus influenzae type B, pneumococcal disease, HPV and chickenpox. The American Academy of Pediatrics schedule for 2026 covers 18. Seven diseases move out of the "everyone" column.

So where do they land? In two other buckets. RSV, hepatitis A and B, meningococcal disease and dengue shift to risk-based, meaning they're advised only for kids who fit a certain profile. Rotavirus, flu and COVID-19 drop into "shared clinical decision-making," where the call belongs to the parent and the clinician together. That third bucket is precisely what HHS wants public input on now.

What the Government Is Actually Asking

Federal vaccine advice currently sorts into three categories: routine for everyone, risk-based, and shared clinical decision-making. HHS is asking whether those three are clear enough, understood well enough, and whether more should be added — labels like "recommended, but not during infancy" or "recommended with qualifications." The notice also invites comment on timing and sequencing, wider age windows for a given shot, and splitting doses across separate office visits.

Tellingly, the agency asks about the downside of shared decision-making too: confusion for patients and doctors, falling vaccination rates, and the extra minutes each conversation eats out of an already short appointment. HHS frames all of this around trust, saying confidence in federal health guidance slipped during and after COVID because some decisions looked rushed or overconfident.

How the Childhood Vaccine Schedule Got Narrowed

The order does more than reshuffle categories. It pushes for measles, mumps and rubella to be given as separate single-disease shots rather than the combined MMR, once domestic supply allows, and for immunizations to be spread across separate visits "to the maximum extent feasible." It also directs the Attorney General to challenge state laws that restrict vaccine exemptions. The HHS Task Force on Safer Childhood Vaccines has 90 days from signing — roughly the second week of November — to deliver implementation plans. Health Secretary Robert F. Kennedy Jr., a longtime critic of vaccines who has promoted the debunked link to autism, oversees that work.

Pediatricians pushed back fast. AAP president Dr. Andrew Racine called the order dangerous and said his group still recommends protection against all 18 diseases on its own schedule.

Not only disheartening but dangerous.

What Shared Decision-Making Looks Like in Real Life

The phrase sounds harmless — of course parents and doctors should talk. But there's already a test case on the books, and it shows how much the label can change behavior.

The Hepatitis B Vote From Last December

In December 2025, the CDC's advisory committee voted 8-3 to end the universal hepatitis B birth dose for babies born to mothers who test negative for the virus, converting it to individual decision-making. Families who skip the birth dose were advised to wait until at least two months. Pediatric groups called the change irresponsible and warned about newborns who slip through when a mother's test result is wrong or missing.

More Visits Means More Missed Paychecks

Racine made a practical point that gets lost in the ideology: stretching the same shots over more appointments means more trips, more copays, more hours off work and school. For an hourly worker without paid leave, a fourth or fifth well-child visit is real money. The kids most likely to fall behind are the ones whose parents can least afford to keep showing up.

The Numbers Behind the Timing

This is landing during the worst measles year in decades. The U.S. has logged more than 2,560 cases in 2026, already past the 2,289 recorded in all of 2025, and pediatricians say it's a 35-year high. CDC data released in August put kindergarten exemptions at a record 4.2% — about 155,000 children with at least one exemption. Exemptions rose in 41 states and Washington, D.C., and 24 states now sit above 5%.

Coverage ran between 92.0% for DTaP and 92.4% for MMR and polio. That gap matters more than it looks: measles needs roughly 95% coverage to stop spreading, so two or three percentage points is the difference between a single case and an outbreak. On flu, the AAP still advises vaccination for everyone six months and older, citing 190 pediatric deaths last season and evidence that the shot cuts the risk of dying by about 80%.

What to Do Before September 20

Comments go into the federal docket, and the task force plan follows in November, so this is the last easy moment to be heard. If you have a kid due for shots this fall, ask your pediatrician which schedule their practice is using — most are staying with the 18-disease version. And whatever ends up on the childhood vaccine schedule, keep your own copy of your child's immunization record; when the categories move, that piece of paper is what school and camp forms will still ask for.