"The U.S. Conference of Catholic Bishops has stated, “When ethically irreproachable COVID-19 vaccines are not available … it is morally acceptable to receive COVID-19 vaccines that have used cell lines from aborted fetuses in their research and production process. However, if one can choose among equally safe and effective COVID-19 vaccines, the vaccine with the least connection to abortion-derived cell lines should be chosen. Therefore, if one has the ability to choose a vaccine, Pfizer or Moderna’s vaccines should be chosen over Johnson & Johnson’s.” It should be noted that due to the fact that demand currently outpaces supply of COVID-19 vaccines, as well as the overwhelming benefit of immediate vaccination weighed against the dangers of waiting, healthcare experts encourage all those eligible to accept the vaccine being offered to them. The U.S. Conference of Catholic Bishops have also stated that “receiving a COVID-19 vaccine … should be considered an act of love of our neighbor and part of our moral responsibility for the common good.”"