The European Union recently announced that 70% of adults in the bloc were fully vaccinated against COVID-19, thus achieving the goal Brussels established at the beginning of this year. This milestone makes the European Union one of the most successful political entities in the world in terms of rolling out COVID-19 vaccines. However, the bloc still faces significant challenges before it can fully claim victory in the fight against the deadly virus. For one, vaccination rates are well below the average in some member states, especially in Eastern Europe. But even in Western Europe, where vaccination rates are on average higher, governments are struggling to convince the more hesitant members of their population to get a shot, which is needed to reach 80-90% vaccination.