“…Why is it that the MMR, HPV and H1N1 vaccines have led to public hesitancy and in some cases public outrage while the altruistic introduction of an oral polio vaccine to all children in order to protect (relatively few) immunocompromised children from polio was a huge success [1]? Why was uptake of the measles vaccine still higher among former Eastern Germans than among former Western Germans even years after the fall of the Berlin wall [2–4]? Paradoxically, the success of vaccination programs may itself lead to increasing vaccine hesitancy as the disease will increasingly be seen as a low threat because of the longer spells between outbreaks [5].…”