U.K. medical teams began administering Pfizer-BioNTech coronavirus vaccine doses on Tuesday, with people aged 80 and older the first to be inoculated.
The big picture: The U.K. last week became the first Western nation to give emergency approval for a COVID-19 vaccine. Margaret Keenan, 90, was the world's first person to get a fully tested, clinically authorized COVID-19 vaccine, at a hospital in Coventry, England. Health Secretary Matt Hancock said, "We will look back on today, V-day, as a key moment in our fightback against this terrible disease."
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Editor's note: This article has been updated with details of Keenan's vaccination.