"The Holy See, through the Congregation for the Doctrine of the Faith and the Pontifical Academy for Life, has offered guidance on the question of whether it is morally acceptable to receive a vaccine that has been created with the use of morally compromised cell lines," the bishops said. "Both the Congregation for the Doctrine of the Faith and the Pontifical Academy for Life emphasize the positive moral obligation to do good and in so doing to distance oneself as much as possible from the immoral act of another party such as abortion." The bishops also noted that "with regard to people involved in the development and production of vaccines, the Congregation for the Doctrine of the Faith explains that 'in organizations where cell lines of illicit origin are being utilized, the responsibility of those who make the decision to use them is not the same as that of those who have no voice in such a decision.'"