Advertisement Britain could vaccinate 24million people against coronavirus by Easter after the game-changing Oxford University/ AstraZeneca jab was approved this morning and its makers promised to deliver 2million doses a week. In a massive boost to ending the pandemic within months, the UK medical regulator green-lit the vaccine, which is cheap, easy to transport to care homes and protects 70 per cent of people after just 21 days. Regulators are now recommending the jab is given in two doses three months apart, rather than over a four-week period, allowing millions more to be immunised over a shorter time period. Britain has already ordered 100million doses and injections are due to start on Monday, but ministers now face the mammoth challenge of trying to vaccinate 2million people a week to curb the spread of a highly-infectious mutant strain racing across the country.