Virus Outbreak Britain Vaccine

Heath Secretary Matt Hancock gives a thumbs up as he leaves Millbank in Westminster, central London, after the news that a Covid-19 vaccine from Oxford University and AstraZeneca has been approved for use in the UK, paving the way for a mass rollout. Britain on Wednesday authorized use of a second COVID-19 vaccine, becoming the first country to greenlight an easy-to-handle shot that its developers hope will become the “vaccine for the world.” (Steve Parsons/PA via AP)