112 NEW: People over 18 who are "moderately to severely immunocompromised" and have received three doses of an mRNA vaccine may get a FOURTH shot at least six months after getting their third Pfizer or Moderna dose, per the CDC. -- Give it a couple months and we'll be hearing about a FIFTH shot. (twitter.com) posted 3 years ago by Taffy333 3 years ago by Taffy333 +112 / -0 15 comments share 15 comments share save hide report block hide replies
The Pfizer NCT 04368728 has 8 shots