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Quantifying the Polarization of Vaccine Policymaking Across State Legislatures

Matt Motta1, Timothy Callaghan1

  • 1The authors are with the Department of Health Law, Policy, & Management, Boston University School of Public Health, Boston, MA.

American Journal of Public Health
|July 16, 2026
PubMed
Summary

Antivaccine legislation has surged since the COVID-19 pandemic, with 86% of bills sponsored by Republican lawmakers. This partisan trend in vaccine policy may threaten public health by potentially lowering vaccination rates.

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