In the wake of the Sars-CoV-2 pandemic, some scientists and pharmaceutical companies have come to the unsettling conclusion that the Covid-19 pandemic can only be overcome by vaccination and the constant administration of booster vaccines, at a frequency more akin to the effect of a depot injection than a vaccination. As much as we welcome and recommend all licensed vaccinations (including the rather new mRNA and vector products), we strongly support the critical rejection by EMA of the temptation to keep administering boosters at ultra-short intervals. Vaccines are by definition not regular drugs and have not been authorized as such.