HomePfizer signs new $3.2 billion COVID vaccine deal with U.S. governmentFILE PHOTO: Test tubes are seen in front of displayed

FILE PHOTO: Test tubes are seen in front of displayed

FILE PHOTO: Test tubes are seen in front of displayed Pfizer and Biontech logos in this illustration taken, May 21, 2021. REUTERS/Dado Ruvic/Illustration/File Photo
FILE PHOTO: A medical worker fills a syringe with a
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