The dioceses of Greensburg and Pittsburgh are supporting a recommendation by the United States Conference of Catholic Bishops (USCCB) that parishioners avoid, if possible, the Johnson & Johnson vaccine against COVID-19. The statement by the bishops, which was released Tuesday, said that believers should get the vaccines that are being manufactured by Pfizer or Moderna, rather than the newly approved Johnson & Johnson vaccine if they have a choice. In a statement, the bishops said the Johnson & Johnson vaccine âwas developed, tested and is produced with abortion-derived cell lines.â But the bishops also recommended that if the faithful have no choice and the Johnson & Johnson vaccine is the only one available, they should go ahead and get that. That is in line with a December directive from the Vatican that it is âmorally acceptable to receive COVID-19 vaccines that have used cell lines from aborted fetuses in their research and production processâ if there is no other option available.