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FILE - In this Jan. 2, 2021 file photo a vial of the COVID-19 vaccine developed by Oxford University and U.K.-based drugmaker AstraZeneca is checked as they arrive at the Princess Royal Hospital in Haywards Heath, England. The European Medicines Agency is expected on Friday Jan. 29, 2021 to authorize use of the vaccine AstraZeneca developed with Oxford University. It would be the third cleared for use in the EU, after the BioNTech-Pfizer and Moderna vaccines. (Gareth Fuller/Pool via AP, File)