“People may in good conscience use the vaccines produced by Pfizer and Moderna, which made only limited use of those unethical cell lines (for lab testing of the vaccine),” Iowa’s bishops said. “Morally speaking, the vaccine offered by these two companies is relatively remote from the evil of abortion, and so need not trouble anyone’s conscience to use either one. In contrast, some other companies use a cell line from the fetal tissue of an aborted baby in the design, development, production, and lab testing of their COVID vaccines. If possible, those vaccines should not be used. If there is no alternative available, however, people may in good faith use them against the serious health risk of COVID.”