This paper seeks to contribute to a more nuanced discourse on vaccination policy. Current polarization between either mandatory and entirely voluntary is misleading, as virtually all immunization programs feature a combination of instruments that comprise mandatory and voluntary elements. We develop this argument by presenting five case studies from the European Union (EU). By systematically acknowledging the nuances of political and institutional varieties, we build the case for reframing the terms of the debate in the EU and beyond.
Keywords: European Union (EU); Institutions; National immunization systems; Policy; Vaccination.