While vaccination policy is a competence of national authorities, the EU plays a role in coordinating policies and programmes in this area.In response to the threat to public health posed by outbreaks of vaccine-preventable diseases, the EU is taking action to strengthen cooperation.The survey asks questions about:• Europeans’ perceptions of vaccine-preventable diseases and of the perceived effectiveness of vaccines,• Europeans’ experiences with vaccination,• levels of Europeans’ knowledge about the effects of vaccines,• attitudes regarding the importance of vaccinations,• Europeans’ sources of information about vaccines and the extent to which they trust them.Read the full barometer report.