A new real-world study released this week found two doses of the Pfizer-BioNTech COVID-19 vaccine provides 70 per cent protection against hospitalization by the Omicron variant.
- Pfizer and BioNTech begin testing Omicron-specific COVID-19 vaccine
- Omicron variant might make COVID-19 vaccines less effective, WHO warns
- Pfizer’s vaccine 70% effective against hospitalization from Omicron: study