FILE - In this Thursday, Feb. 20, 2020 file photo, a view of the AstraZeneca logo, on a building, in South San Francisco, Calif. Drug maker AstraZeneca secured its first agreements Thursday, May 21, 2020 for 400 million doses of a COVID-19 vaccine, bolstered by an investment from the U.S. vaccine agency. (AP Photo/Jeff Chiu, File)
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