US approves Pfizer vaccine as millions of doses begin shipping

The United States green-lighted the Pfizer-BioNTech Covid-19 vaccine late on Friday, paving the way for millions of vulnerable people to receive their shots in the world's hardest-hit country. President Donald Trump immediately released a video on Twitter, where he hailed the news as a “medical miracle” and said the first immunisations would take place “in less than 24 hours”. It comes as infections across America soar as never before, with the grim milestone of 300,000 confirmed deaths fast approaching. The US is now the sixth country to approve the two-dose regimen, after Britain, Bahrain, Canada, Saudi Arabia and Mexico. The move came earlier than expected and capped a day of drama after...