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Emma Cott Profile picture
Emma Cott
@EmmaCottNYT
Senior Video Journalist for The New York Times
Apr 28, 2021 • 7 tweets • 3 min read
How does Pfizer make its Covid-19 vaccine? We went behind the scenes to see the 60-day process, step by step. nytimes.com/interactive/20… It begins in a suburb of St. Louis, where vials of DNA containing a coronavirus gene are held in deep freeze.