Many fathers and mothers who refuse to vaccinate their sons or daughters or who feel uncertain about the possibility of inoculation, are attacked by a cultural-health system that demands obedience. A pyramid system where the population occupies the base and receives the guidelines from the vertex. The spaces to talk between "defenders" and "detractors" or "critics" of vaccination need many books like this one. Here is information, collective and autonomous reflection. About vaccines, it opens the game and invites discussion, problematization, and clarification of certainties and fears. Because our health and life are too important not to get involved.