Pfizer, BioNTech seek emergency use of coronavirus shots in US
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Pfizer formally asked U.S. regulators Friday to allow emergency use of its COVID-19 vaccine, starting the clock on a process that could bring limited first shots as early as next month and eventually an end to the pandemic -- but not until after a long, hard winter. The action comes days after Pfizer Inc announced that its vaccine appears 95% effective at preventing mild to severe COVID-19 disease in a large, ongoing study.