Bishop Joe S. Vásquez, of the Diocese of Austin, issued the following pastoral message to the Catholic faithful on September 8, 2020: I wish to inform you of wonderful news in the world of vaccines. Recently the U.S. Food and Drug Administration (FDA) approved the request of pharmaceutical provider Sanofi Pasteur to stop using the aborted fetal cell line known as MRC-5 and begin using an ethical animal cell line in producing its polio vaccines.