BusinessCheckoutHow Coronavirus Is Transforming CommerceFacebookXLinkedInEmailLinkGiftExpandHealthcare workers prepare doses of the Pfizer-BioNTech Covid-19 vaccine at Coors Field in Denver, Colorado, on Feb. 20, 2021.Photographer: Chet Strange/BloombergFacebookXLinkedInEmailLinkGiftGift this articleContact us:Provide news feedback or report an errorConfidential tip?Send a tip to our reportersSite feedback:Take our SurveyNew WindowFacebookXLinkedInEmailLinkGiftBy Matthew TownsendMay 13, 2020 at 11:26 AM UTCUpdated on March 25, 2021 at 1:34 PM UTCBookmarkSave