The US has administered more vaccine doses than any other country, just months after President Joe Biden took office. As countries including the EU, Canada and Mexico lobby to secure any spare supply produced in the US, the FT's Washington correspondent Kiran Stacey explains why the US might now decide to retain its capacity. Read more at http://on.ft.com/30VDLBd. See if you get the FT for free as a student (http://ft.com/schoolsarefree) or start a £1 trial: https://subs.ft.com/spa3_trial?segmentId=3d4ba81b-96bb-cef0-9ece-29efd6ef2132


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