Oxford and AstraZeneca announce their vaccine is 70% effective on average in preliminary results
The Oxford University/AstraZeneca coronavirus vaccine is 70 per cent effective at preventing COVID-19, preliminary results have revealed.
The life-saving jab is Britain’s best chance of mass-inoculation of the population because Boris Johnson has ordered 100million.
The efficacy result, 25 per cent lower than its rivals, came after a study involving 20,000 volunteers. Vaccines developed by Pfizer and Moderna showed 95% protection.
However, Oxford University/AstraZeneca say they have found no serious Covid-19 cases among anyone who the received jab.