The recent flurry of papers on omicron trying to decouple the effect of its intrinsic virulence from prior immunity have been finding that prior infection (wit

The recent flurry of papers on omicron trying to decouple the effect of its intrinsic virulence from prior immunity have been finding that prior infection (with delta) and unboosted vaccination have comparable risk reduction file hospitalization from Covid It’s been a couple weeks so maybe there is better, less preliminary analysis available now On hospitalization risk in the UK: https://www.imperial.ac.uk/mrc-global-infectious-disease-analysis/covid-19/report-49-Omicron/ https://www.imperial.ac.uk/mrc-global-infectious-disease-ana... On reinfection/breakthrough risk: https://www.medrxiv.org/content/10.1101/2021.12.27.21268278v1 https://www.medrxiv.org/content/10.1101/2021.12.27.21268278v...