President Donald Trump's recent executive order on childhood vaccines has generated a predictable and understandable debate around public health needs, parental autonomy and the scientific justifications for the directive. The order proposes, among other things, altering the U.S. childhood vaccine schedule and splitting up the combined MMR vaccine into multiple shots. As an immunologist, my view is that the order contradicts established scientific consensus and instead backs narratives that are not supported by evidence.
However, the more important issue with the order may be something more fundamental: What happens when vaccine policy is divorced from the scientific processes designed to guide it?
For many decades, the U.S. relied on a transparent process in which scientists, physicians, public health experts and vaccine specialists reviewed evidence and developed recommendations for who should receive a given vaccine and when. Through this process, there would be disagreements, which is not only expected but welcomed. Cons...
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