Boxes containing the Pfizer-BioNTech COVID-19 vaccine are prepared to be shipped at the Pfizer Global Supply Kalamazoo manufacturing plant on Dec.
13, 2020 in Portage, Michigan. (Photo by Morry Gash - Pool/Getty Images) AdvertisementPacked in dry ice to stay at ultra-frozen temperatures, the first of nearly 3 million doses being shipped in staggered batches this week made their way by truck and by plane around the country Sunday from Pfizer’s Kalamazoo, Michigan, factory.
Once they arrive at distribution centers, each state directs where the doses go next.RELATED: First shipment of Pfizer COVID-19 Vaccine departs from Michigan plantSome hospitals across the country spent the weekend tracking their packages, refreshing FedEx and UPS websites.