Fetal Bovine Serum in Vaccines By Vincent Iannelli, MD / September 28, 2016 July 27, 2019 / benefits, bovine serum albumin, cows, fetal bovine serum, ingredients, mad-cow disease, residual ingredients, risks, vaccine myths Fetal bovine serum in vaccines is used as a growth media to provide nutrients to viruses. Share this:FacebookTwitterRedditPrintLinkedInPinterestEmailTumblrWhatsAppLike this:Like Loading...