President Trump signed Executive Order 14420 (EO) on August 10, attempting to reclassify the recommended childhood vaccine schedule from 18 diseases down to 11, and to change the nature of the measles, mumps, and rubella vaccine.
It’s important to understand that an EO cannot legally change the Recommended Child and Adolescent Immunization Schedule. But it can add to the confusion already surrounding how best to protect children from preventable childhood illnesses. This EO arrived the same week that the CDC reported that measles cases had reached their highest level in 35 years and that vaccination coverage among kindergartners had fallen for the second year in a row.
Trump continued to share misinformation at the signing, claiming that some childhood vaccines are the size of a bottle of soda poured into a little child’s body. A typical dose is about a tenth of a teaspoon; it would take roughly 1,200 doses to fill an actual soda bottle. Claims like this only add to the confusion.
What the Executive Order Actually Does
As already noted, the EO cannot change the Recommended Child and Adolescent Immunization Schedule. Courts have already stopped the administration’s previous efforts to do that, when they bypassed the Advisory Committee on Immunization Practices and the CDC director, the officials legally responsible for setting the vaccine schedule. Legal and medical experts agree. Families are unlikely to see any real change in what’s required or recommended for their children.
The EO frames this as a reduction from 18 recommended diseases to 11. Most press coverage puts the actual number at 17, not 18; the EO reaches 18 by counting a treatment for RSV that isn’t technically a vaccine, a detail that undercuts its own claim to scientific rigor.
The EO also calls for splitting the combined MMR vaccine into three shots, a recommendation that traces back to discredited research linking vaccines to autism. No manufacturer currently makes separate versions. Merck, one of two manufacturers, said developing them could take up to a decade.
The EO may be mostly symbolic on the schedule itself, but it does direct the Justice Department to investigate what kinds of exemptions states allow from school vaccination requirements. All states allow exemptions for medical reasons. Most also allow exemptions for religious reasons, though the process varies widely. Five states allow no religious exemption at all, and are likely to be the DOJ’s target: California, Connecticut, Maine, New York, and West Virginia. Not by coincidence, those five states have some of the country’s highest vaccination rates, and none is where the current measles outbreak is concentrated.
What’s Already Happening
Whatever Trump’s exact motive for continuing to promote misinformation about vaccines, the timing lines up with an administration trying to win back an anti-vaccine base it recently disappointed on peptide and PFAS regulation. Heritage Foundation researcher Jay Richards said the EO could re-energize MAHA voters ahead of the midterms.
The CDC’s most recent report shows real strain already underway. MMR coverage among kindergartners has fallen to 92.4%, below the 95% threshold needed to prevent outbreaks, a level the country hasn’t reached since 2019-2020. Exemptions reached a record 4.2%. About 280,000 kindergartners started school without a documented, complete MMR series. KFF’s Jen Kates says the decline is concentrated in certain pockets of the country, exactly where outbreaks like the current measles surge begin.
What You Can Do
Help your family, friends, and community make sense of this. A vaccine dose is about a tenth of a teaspoon, not a bottle of soda, and decades of research have found no link between childhood vaccines and autism. Your state’s requirements haven’t changed. For the schedule itself, the American Academy of Pediatrics publishes its own schedule, endorsed by 12 major medical organizations, at healthychildren.org.
Endnotes
1. Full text of Executive Order 14420, including the schedule downgrades, the MMR split, and the Justice Department directive: The White House, “Delivering Gold Standard Childhood Vaccine Recommendations for Americans,” August 10, 2026.
2. Fact-check of Trump’s “bottle of soda” claim, including the 1,200-dose comparison: PolitiFact, “Doctors Don’t Inject Kids With Soda Bottle’s Worth of Vaccines. Trump’s Claim Is Pants on Fire,” August 11, 2026.
3. March 16 federal court ruling blocking the January schedule change for bypassing the Advisory Committee on Immunization Practices and the CDC director: NBC News, “Federal Judge Blocks RFK Jr.’s Changes to Childhood Vaccine Schedule,” March 16, 2026.
4. Merck’s statement that separating the MMR vaccine could take up to a decade to reach FDA approval and market, and reporting on the schedule’s actual disease count (17, not 18): Johns Hopkins Bloomberg School of Public Health, “What Does the Executive Order on Childhood Vaccines Say?” August 2026.
5. Legal and medical experts stating the order is unlikely to change vaccine mandates families actually follow, and framing from a political scientist that the order is largely symbolic: The 19th News, “What Trump’s Vaccine Order Says About His Relationship With MAHA Moms,” August 2026.
6. Heritage Foundation researcher Jay Richards on the order’s potential to re-energize MAHA voters, and polling on the political risk to Republicans ahead of the midterms: The Hill, “Trump’s Vaccine Policy Complicates Path for Vulnerable Republicans Ahead of Midterm Elections,” August 2026.
7. CDC data on kindergarten MMR coverage, exemption rates, and the number of kindergartners without a complete MMR series for the 2025–2026 school year: CDC, SchoolVaxView, “Vaccination Coverage and Exemptions Among Kindergartners,” updated August 17, 2026.
8. KFF’s Jen Kates connecting declining regional coverage to the current measles outbreak, and the confirmed measles case count for 2026: CNBC/Reuters, “U.S. Kindergarten Vaccine Coverage Falls, CDC Says,” August 17, 2026.
9. State-by-state exemption law variation, and the five states, California, Connecticut, Maine, New York, and West Virginia, that allow only medical exemptions: National Conference of State Legislatures, “States With Religious and Philosophical Exemptions From School Immunization Requirements,” 2026.
10. The American Academy of Pediatrics’ independently published 2026 childhood and adolescent immunization schedule, endorsed by twelve medical organizations: American Academy of Pediatrics / HealthyChildren.org, “AAP Releases Recommended Childhood and Adolescent Immunization Schedule for 2026,” January 26, 2026.