Sources in Whitehall said: “Initially the government was considering 30 million doses, but ministers have worked to secure a much larger supply.”
Purchasing decisions are made by the ministerial group of the Vaccines Working Group, which includes the Secretary of Health, the Secretary of Business and the Chief Secretary of the Treasury.
A government spokesperson said: ‘The UK was the first country in the world to sign an agreement with the University of Oxford and AstraZeneca to ensure rapid access to 100 million doses of their Covid-19 vaccine .
“The government fully funded the University of Oxford clinical trials and their nominee was the first to be included in our diverse vaccine portfolio, which now has 355 million doses from seven vaccine developers. “