Pfizer booster RCT (n~10K) despite demonstrating short-term (~2.5mos) reduction in C19 infections, had ZERO hospitalizations in either grp, & booster apparently conferred no ↓ in infections among those with prior C19 infectionhttps://t.co/KhEB6g8wQ9 ; https://t.co/FxflZArNhT pic.twitter.com/GnowFkIjs1

— Andrew Bostom, MD, MS (@andrewbostom) December 2, 2021