Public Health England has assessed the vaccine rollout:
- found protection against death rises from about 80% after one dose of the Pfizer-BioNTech vaccine
- 97% after two doses
Researchers are seeking more data on the two AstraZeneca doses
- that vaccine rollout started later than Pfizer's
- However, Public Health England said just one AstraZeneca dose reduced the risk of death by 80%
These are impressive numbers. The research is yet to be peer-reveiwed.