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TO: Diocesan Pro-Life Directors, State Catholic Conference Directors

FROM: Greg Schleppenbach, Associate Director

DATE: November 24, 2020

RE: The Moral Permissibility of Covid-19 Vaccines

There appears to be some confusion in the media regarding the moral permissibility of using the vaccines for COVID-19 developed by Pfizer Inc. and Moderna. I would like to offer some clarifications.

Neither the Pfizer nor the Moderna vaccine involved the use of cell lines that originated in fetal tissue taken from the body of an aborted baby at any level of design, development, or production.1 They are not completely free from any connection to abortion, however, as one of the tests that Pfizer and Moderna cited to confirm that their vaccine would work relied upon an abortion-tainted cell line. There is thus a connection, but it is relatively remote.

View a PDF version of the letter below or read the full letter online HERE.


Download USCCB COVID 19 Vaccine Memorandum 11 24 2020