FDA authorizes Pfizer coronavirus vaccine booster Posted on September 23, 2021September 23, 2021 by Meme News Photo credit: U.S. Secretary of Defense – 201214-D-BN624-0345, CC BY 2.0, link. GET THE FULL STORY FDA authorizes Pfizer coronavirus vaccine booster. Share this:Click to share on Facebook (Opens in new window)Like this:Like Loading...