Why did the US overhaul its pediatric vaccine schedule?

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Overhaul Driven by Comparison and Shift Towards Individualized Recommendations

The United States overhauled its pediatric vaccine schedule primarily to align more closely with international practices, specifically Denmark's, and to move towards a model of recommending certain vaccines for high-risk individuals or when deemed necessary by parents and doctors, rather than as universal mandates. This change, announced by the health department under Robert F. Kennedy Jr., reduced the number of universally recommended pediatric immunizations from 17 to 11.
Shift Towards Select Recommendations for Specific Vaccines

Under the revised schedule, the Centers for Disease Control and Prevention (CDC) will no longer universally recommend immunizations against rotavirus and influenza for all children. Instead, these vaccines, along with those for hepatitis A, hepatitis B, and meningococcal disease, will be recommended for select high-risk individuals or when parents and physicians determine they are warranted. This marks a departure from previous broad recommendations, with the CDC having already adopted a similar model for Covid-19 shots in 2025.
Influence of International Comparisons and Presidential Directive

The overhaul was initiated following a directive from President Donald Trump to compare the US vaccine schedule with those of peer countries, with a particular focus on Denmark. The new recommendations now more closely mirror Denmark's approach. Robert F. Kennedy Jr. stated that this decision aligns the US schedule with international consensus, enhances transparency, and aims to rebuild trust in public health.
Criticism from Medical and Public Health Experts

The changes have drawn criticism from medical and public health professionals. Sean O’Leary, chair of the American Academy of Pediatrics Committee on Infectious Diseases, emphasized that the US vaccine schedule is thoroughly researched and decisions should be evidence-based, not based on comparisons that disregard significant differences between countries. Experts from the Vaccine Integrity Project also noted that Denmark's schedule is an outlier due to its unique characteristics, such as a small, homogeneous population and a universal healthcare system, conditions not applicable to the United States. Senator Bill Cassidy expressed concern that altering the schedule without robust scientific input on safety risks and with limited transparency could foster fear and negatively impact public health.

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Why did the US overhaul its pediatric vaccine schedule?

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