For example, the UK government has secured a deal for 100 million doses of the Oxford vaccine, which is 5 per cent of the projected world supply for a country with less than 1 per cent of the global population. The US has signed a deal to buy 350 million doses of the Oxford vaccine, 17.5 per cent of global supply for a country with 4 per cent of its population. “There is no such thing as a British or Chinese or American vaccine, any vaccine must be a global public good,” says Yamey.