The US administration of Joe Biden will purchase 500  million doses of Pfizer’s coronavirus vaccine to donate globally, according to a report Wednesday. The Washington Post cited three people familiar with the plans who said Biden will announce the plan at the Group of Seven (G7) meeting in Britain later this week. US to donate 500M doses of Pfizer vaccine worldwide: Report https://t.co/Bwl4ECgvaG — World Top News Ng (@WorldTopNewsNG) June ...