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The U.S. government says it will purchase and donate 500 million doses of Pfizer Inc.s coronavirus vaccine to more than 90 lower-income countries and the African Union, an announcement that comes just ahead of the Group of Seven summit meeting in Britain.

U.S. to share 60 mil. AstraZeneca vaccine doses with other countries The United States will share with other countries its stock of up to 60 million doses of AstraZeneca Plcs coronavirus vaccine as they become available over the next few months, the White House said Monday. "We do not need to use AstraZeneca in our fight against COVID over the next few months," Press Secretary Jen Psaki said at a press conference, noting that the British companys vaccine has yet to be authorized by the U.S. dru...