"Since the first vaccines against Covid-19 are already available for distribution and administration in various countries, this Congregation desires to offer some indications for clarification of this matter. We do not intend to judge the safety and efficacy of these vaccines, although ethically relevant and necessary, as this evaluation is the responsibility of biomedical researchers and drug agencies. Here, our objective is only to consider the moral aspects of the use of the vaccines against Covid-19 that have been developed from cell lines derived from tissues obtained from two fetuses that were not spontaneously aborted."