Oxford/AstraZeneca vaccine to undergo new global trial

Share price drops as critics question claim vaccine could protect up to 90% of people

• What tier am I in? Latest Covid rules in England post-lockdown
• Coronavirus - latest updates
• See all our coronavirus coverage

The Oxford University/AstraZeneca vaccine will undergo a new global trial as critics questioned the claim that it could protect up to 90% of people against coronavirus.

On Thursday Sir John Bell, Oxford's regius professor of medicine and the UK government's life sciences adviser, dismissed suggestions the previous trial had not been properly set up or reported. We weren't cooking this up as we went along," he said, adding that he hoped the full, peer-reviewed data would be published in the Lancet medical journal at the weekend.