@RIHEALTH Jul-Oct 2021 data for covid-19 hospitalizations & deaths (obtained by Rep @MikeWChip, & expressed per 100K) reveal prior infection/natural immunity is a FAR more important predictor, regardless of vaccination status pic.twitter.com/qRSzwA63IU

— Andrew Bostom, MD, MS (@andrewbostom) November 18, 2021