The United States has announced a significant change to its national childhood immunisation recommendations, removing six vaccines from the list of those advised for routine administration to all children. The policy revision, confirmed by the Department of Health and Human Services (HHS), marks a departure from long-standing public health guidance and has prompted widespread concern among medical experts.

Under the updated framework, vaccines previously recommended universally — including those against influenza, hepatitis A, hepatitis B, meningococcal disease, rotavirus and respiratory syncytial virus (RSV) — will now be advised primarily for children considered at higher risk or following an individualised assessment between healthcare professionals and families. The COVID-19 vaccine had already been excluded from routine paediatric recommendations earlier.

According to the HHS, the new guidance takes immediate effect and introduces what officials describe as a “shared clinical decision-making” model. This approach places greater emphasis on personalised medical judgement rather than blanket public health recommendations.

Government cites international alignment

US health authorities stated that the revision aims to align the country’s immunisation strategy with what they describe as international practices. Officials referenced countries such as Denmark, where childhood vaccination schedules include fewer universally recommended immunisations.

In a public statement, President Donald Trump argued that the national vaccine schedule had become excessive and reiterated that parents remain free to vaccinate their children fully if they choose. The government also confirmed that vaccines will continue to be covered by health insurance plans.

Following the revision, the United States now recommends 11 vaccines universally during childhood, down from 17. By comparison, France mandates 12 vaccines, while other European nations adopt varying approaches depending on epidemiological and healthcare system factors.

Medical community challenges comparisons

The policy change has been met with swift criticism from paediatricians, infectious disease specialists and public health researchers in the United States, who argue that international comparisons fail to account for structural and demographic differences.

Dr Sean O’Leary, a US-based paediatric infectious disease specialist, emphasised that the American childhood immunisation programme is among the most extensively studied preventive health strategies worldwide. He warned that any modification to vaccine recommendations should be grounded exclusively in robust scientific evidence.

Researchers from the University of Minnesota have also challenged the use of Denmark as a benchmark, noting that the Scandinavian country has a smaller, more homogeneous population, a highly centralised healthcare system and lower circulation of certain infectious diseases — conditions that differ substantially from those in the United States.

Scientific literature consistently demonstrates that high vaccination coverage is essential to preventing outbreaks of serious illnesses. Studies published in journals such as The Lancet and Vaccine, as well as guidance from the World Health Organization (WHO), highlight that reductions in routine immunisation are often followed by resurgences of preventable diseases, particularly among vulnerable populations.

Bipartisan concerns and declining coverage

Criticism of the decision has extended beyond political lines. Republican Senator Bill Cassidy, a physician by training, publicly questioned the scientific basis and transparency of the policy change. He warned that weakening national recommendations could further erode public confidence in vaccines at a time when childhood immunisation rates in the United States have already declined since the COVID-19 pandemic.

Data from the Centers for Disease Control and Prevention (CDC) indicate that even modest drops in vaccination coverage can compromise herd immunity, increasing the likelihood of outbreaks of diseases such as measles and meningococcal infections.

Fears of disease resurgence

Public health experts have also expressed concern that the revised guidance may contribute to renewed circulation of diseases previously kept under control. Conditions such as measles, hepatitis B and meningitis have historically resurged in settings where vaccination recommendations were weakened or public confidence declined.

While individual US states retain authority over which vaccines are required for school enrolment, federal guidelines have traditionally shaped state-level policies. In response to the new recommendations, several states are reportedly considering maintaining broader immunisation requirements independently.

Medical associations and scientific bodies continue to stress that routine childhood vaccination remains one of the most effective tools for reducing morbidity and mortality worldwide. The central concern, experts warn, is that reframing vaccines as optional rather than essential may amplify vaccine hesitancy and place children — particularly those with limited access to healthcare — at increased risk.