Some U.S. states mandated COVID-19 vaccinations during the pandemic to increase vaccination numbers. Yet recent research shows these governmental restrictions had unintended negative consequences and no influence on COVID-19 vaccine uptake.
A study in PNAS found that state-level COVID-19 vaccine mandates did not impact vaccine adoption during the weeks before or after the mandates went into effect, suggesting vaccine mandates did not directly affect COVID-19 vaccination.





