Vaccinations slow after storms delay shipments of 6 million COVID-19 doses

1.4 million doses in transit Friday

UPS employees move one of two shipping containers containing the first shipments of the Pfizer and BioNTech COVID-19 vaccine inside a sorting facility December 13, 2020 in Louisville, Kentucky. The flight originated in Lansing, Michigan. (Photo by Michael Clevenger - Pool/Getty Images)