"In 2005 the Pontifical Academy for Life published a document entitled: "Moral reflections about vaccines prepared from cells of aborted human fetuses" which, in the light of medical advances and current conditions of vaccine preparation, could soon be revised and updated. Especially in consideration of the fact that the cell lines currently used are very distant from the original abortions and no longer imply that bond of moral cooperation indispensable for an ethically negative evaluation of their use. On the other hand, the moral obligation to guarantee the vaccination coverage necessary for the safety of others is no less urgent, especially the safety more vulnerable subjects such as pregnant women and those affected by immunodeficiency who cannot be vaccinated against these diseases. As for the question of the vaccines that used or may have used cells coming from voluntarily aborted fetuses in their preparation, it must be specified that the "wrong" in the moral sense lies in the actions, not in the vaccines or the material itself. The technical characteristics of the production of the vaccines most commonly used in childhood lead us to exclude that there is a morally relevant cooperation between those who use these vaccines today and the practice of voluntary abortion. Hence, we believe that all clinically recommended vaccinations can be used with a clear conscience and that the use of such vaccines does not signify some sort of cooperation with voluntary abortion. While the commitment to ensuring that every vaccine has no connection in its preparation to any material of originating from an abortion, the moral responsibility to vaccinate is reiterated in order to avoid serious health risks for children and the general population."