Two-thirds with Omicron say they have had Covid before The latest findings hint at how common reinfections might be and who is more likely to catch Covid again. Source
Unvaccinated man denied heart transplant by Boston hospital The 31-year-old father-of-two refuses to get the shot, but the hospital says it is following policy. Source
Pfizer and BioNTech start trials of new Omicron-specific jab The companies have adapted their original vaccine to target the fast-spreading variant. Source