(BBC) – US President Joe Biden’s administration will provide 500 million doses of the Pfizer Covid-19 vaccine to about 100 countries over the next two years, US media report.
He praised US allies – “like-minded nations” – and added: “The United States is back!”
What do we know about the 500 million jabs?
What can we expect from the G7 summit?
Other G7 leaders will arrive in Cornwall on Friday, and meetings will get under way the following morning.
At the end of the summit, the UK – as the host nation – will publish a document outlining what has been agreed by the leaders.