Trump signs executive order slashing childhood vaccine recommendations and reviving debunked autism claims

President Donald Trump has signed an executive order overhauling federal childhood vaccine recommendations, cutting the number of diseases all children are advised to be vaccinated against from 18 to 11. The order calls for the combined measles, mumps and rubella shot to be split into three separate injections given at separate visits, and the administration said it would stop recommending hepatitis B, Covid-19 and influenza vaccines for children. The order follows an earlier overhaul of the childhood vaccine schedule announced by Health and Human Services Secretary Robert F. Kennedy Jr., who has a long history of vaccine skepticism. It also attempts to override the authority of the Centers for Disease Control and Prevention, which has traditionally set the federal vaccination schedule. At the signing event, Trump and Kennedy repeatedly raised autism, linking childhood vaccines to the condition despite studies finding no such connection. The exact date of the signing has not been confirmed, and it remains unclear which diseases stay on the recommended list, when the changes would take effect, or how medical organizations and states will respond.

What the order changes about childhood vaccines

The executive order makes sweeping changes to federal childhood vaccine recommendations. Its most striking provision calls for the combined measles, mumps and rubella vaccine to be broken up, with children receiving three separate shots at separate visits rather than the single MMR injection long used in the United States.

The order would also narrow the list of diseases all children are recommended to be vaccinated against, cutting it from 18 to 11. As part of that reduction, the administration said it would stop recommending hepatitis B, Covid-19 and influenza vaccines for children.

The move did not come out of nowhere. It follows an earlier overhaul of the childhood vaccine schedule announced by Health and Human Services Secretary Robert F. Kennedy Jr., who has a long history of skepticism toward vaccines. The order builds on that restructuring and goes further, attempting to override the CDC's authority over the childhood vaccination schedule.

The exact date of the signing has not been confirmed, and it remains unclear which diseases would stay on the recommended list and which would be removed.

Autism claims at the signing, contradicted by the evidence

At the signing event, both President Trump and Health Secretary Robert F. Kennedy Jr. repeatedly raised autism while discussing the order, which links childhood vaccines to the condition. That claim is false. Studies have found no connection between vaccines and autism, and the assertion has been widely debunked.

Kennedy's presence at the event carried particular weight. He has a long history of skepticism toward vaccines, and the order follows an earlier overhaul of the childhood vaccine schedule that he announced as head of the Department of Health and Human Services. Trump, who began his second term on January 20, 2025, after defeating Kamala Harris in the 2024 election, has previously flirted with similar claims. Neither man presented new evidence at the signing to support the link the order asserts.

A direct challenge to the CDC's authority

The executive order attempts to override the CDC's authority over the childhood vaccination schedule, the body that has traditionally set federal recommendations. How it does so is unclear. The reporting does not establish what legal or procedural mechanism the order uses to displace the CDC's role, or whether that move is being challenged in court.

The response from outside the administration is also not yet established. The reporting contains no confirmed reactions from medical organizations, individual states or vaccine manufacturers, all of which have a stake in how the schedule is set and followed. Whether the order can be enforced as written, and against what resistance, remains an open question.

How the order came to light, and what is still unknown

The first signs of the order surfaced on Thursday, August 6, when multiple outlets reported that President Trump was developing an executive order on childhood vaccines and alleged links to autism, and that officials were already drafting it. CNN later obtained a draft document showing Trump planned to sign the order on a Monday, setting out changes to how the federal government handles childhood vaccine recommendations.

Much about the order remains unclear. The exact date of the signing has not been established. Nor is it known which 11 diseases will remain on the recommended list and which seven will be dropped. When the changes would take effect, and how they would be enforced, is also unknown. Reactions from medical organizations, states and vaccine manufacturers had not been reported at the time of writing.

1. 2017 to 2021

   Donald Trump served his first term as the 45th president of the United States.

2. January 20, 2025

   Trump began his second term as the 47th president after defeating Kamala Harris in the 2024 election.

3. Thursday, August 6

   Multiple outlets reported that Trump was developing an executive order on childhood vaccines and alleged links to autism, and that officials were drafting it.

4. Before a Monday signing (date not given)

   A draft document obtained by CNN showed Trump planned to sign an executive order on a Monday to change how the federal government handles childhood vaccines.

5. Before the signing (date not given)

   HHS Secretary Robert F. Kennedy Jr., who has a long history of vaccine skepticism, announced an earlier overhaul of the childhood vaccine schedule that the order follows.

6. At the signing event (date not given)

   Trump signed the executive order changing federal childhood vaccine recommendations; he and Kennedy repeatedly raised autism despite studies finding no vaccine-autism connection.

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