Washington, D.C. — A sweeping change to childhood vaccination recommendations, announced January 5, 2026, means the U.S. now recommends fewer vaccines for children than most other high-income nations. The move, spearheaded by the Trump administration and Health and Human Services Secretary Robert F. Kennedy Jr., has sparked alarm among public health experts.
U.S. Vaccine Schedule Shifts, Raising Concerns About Disease Prevention
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The revised recommendations represent the most significant alteration to the U.S. childhood immunization schedule in decades.
- The U.S. is moving away from universal recommendations for vaccines like hepatitis A, RSV, and certain types of meningitis, offering them only to high-risk groups.
- Other vaccines, including influenza and rotavirus, now require shared clinical decision-making with a doctor.
- Experts warn the changes are not based on scientific evidence and could lead to increased disease outbreaks.
- The new schedule more closely resembles that of Denmark, a country with a notably minimalist approach to childhood vaccinations.
What’s driving this shift in U.S. vaccine policy? The administration argues it’s aligning with “peer, developed countries,” as directed by Donald Trump in December. However, many experts disagree, pointing out that most other wealthy nations maintain or are expanding their vaccine schedules.
“It’s the largest change in our vaccination schedule in modern American history,” said Jake Scott, an infectious diseases specialist and clinical associate professor at Stanford University School of Medicine.
A Step Backwards for Public Health?
The changes mean some vaccines are now only offered to “high-risk” groups – including hepatitis A, RSV, hepatitis B, and vaccines to prevent two types of meningitis. The dengue vaccine will continue to be recommended only in high-risk areas. Other vaccines, including influenza, rotavirus, meningococcal disease, hepatitis A, and hepatitis B, are now offered only under shared clinical decision-making, a process that typically requires a doctor’s recommendation. Covid vaccines were similarly limited in November.
A: The administration, led by Secretary Robert F. Kennedy Jr., has expressed a desire for fewer vaccines, and critics say the changes are ideologically driven rather than based on scientific evidence.
The UK, Canada, Australia, Japan, and most European countries continue to recommend influenza, rotavirus, and hepatitis B vaccines universally for children. All except Japan routinely recommend vaccines against meningococcal disease. Canada, Japan, and most European nations recommend the RSV shot for all newborns, while Australia and the UK recommend the RSV vaccine for pregnant people and high-risk newborns.
Japan added the rotavirus shot in 2020, and the UK recently moved to recommend chickenpox vaccine for all children. These decisions, experts note, were often informed by the U.S.’s own research demonstrating vaccine safety and effectiveness. “The US policies used to be considered leadership in the public health policy space,” said Daniel Jernigan, former director of the National Center for Emerging Zoonotic Infectious Diseases.
The Denmark Comparison and U.S. Healthcare Realities
The new U.S. schedule now more closely resembles that of Denmark, a smaller nation with universal healthcare. “Denmark is an outlier,” Scott explained. “They’ve got the most minimalist childhood vaccine schedule” among high-income countries.
The U.S. itself is an outlier when it comes to healthcare and social safety nets, being the only high-income nation without universal healthcare and paid family leave. This disparity is crucial, experts say, because access to care significantly impacts vaccine uptake and disease spread.
With a population of 330 million compared to Denmark’s 6 million, and a fragmented health system spanning a vast geography and diverse population, the U.S. faces unique challenges. Nearly a third of Americans lack access to primary care, increasing the risk of delayed care and disease transmission. The ease of travel between urban and rural areas, and across state and international borders, further complicates disease control.
“Disease moves differently” in the U.S., Scott said. Jernigan added, “It’s like traveling from your own country to a new country.”
In countries with universal healthcare, accessing vaccines recommended for high-risk populations is often easier. For example, children born to people with hepatitis B are at high risk, but in the U.S., they are less likely to receive timely vaccination due to limited access to testing and follow-up care.
Lack of Transparency and Scientific Process
Andrew Nixon, an HHS spokesperson, cited declining trust in public health, but offered no evidence linking the schedule changes to improved trust. Critics also point to a lack of transparency in the decision-making process. There was no public comment period, no discussion with the Advisory Committee on Immunization Practices (ACIP), and no input from outside scientists or groups like the American Academy of Pediatrics.
“We have a sweeping health policy that has no public engagement,” Jernigan said. “This administration just refuses to use the process.”
The administration based its recommendations on a 33-page report authored by Tracy Beth Høeg, now the top regulator of drugs at the FDA, and Martin Kulldorff, a biostatistician previously briefly advising ACIP. Jernigan described the report as “an opinion piece,” noting its limited authorship. “It lists two authors, which is very odd – to have a sweeping document that leads to significant policy change list two authors.”
The announcement itself was handled with limited transparency, with only a select group of journalists briefed by HHS on Monday.
“The science hasn’t changed. The only thing that’s changed is who’s making the decisions and what conclusions they want to reach,” Scott said. Jernigan warned, “We cannot let this be the new normal of what the government’s doing, because the government’s basically saying ‘just quit listening to me from now on.’ It’s really unfortunate.” He urged patients to continue seeking vaccines and providers to continue recommending them, warning of the potential consequences of outbreaks like meningitis.
