Real-life data on the vaccine rollout suggests the jabs are providing even more protection against Covid-19 than was expected from clinical trials, according to Public Health England (PHE).
After a second dose of the Oxford/AstraZeneca vaccine, the chance of falling ill with Covid is reduced by around 89 per cent, scientists believe. Trials put the jab’s efficacy around 70-75 per cent.
Full protection appears to be reached seven days after the second vaccination. It is possible that the UK’s policy of leaving up to 12 weeks between doses, rather than the three-week gap used in the clinical trials, explains the greater efficacy.
PHE epidemiologist Meaghan Kall said there was “evidence to show that Pfizer (initially thought to have the edge on effectiveness) is actually running head-to-head with Oxford/AZ”.
The Pfizer jab provides a similar level of protection against illness as Oxford/AstraZeneca, and cuts the chance of death by 95-99 per cent.
https://inews.co.uk/news/oxford-astr...llness-1012287