Support WBURModerna Increases COVID-19 Vaccine Shipments While Pfizer Lags BehindPlay03:42Download AudioSydney LupkinFebruary 01, 2021 ShareA worker carries boxes containing the Pfizer-BioNTech COVID-19 vaccine that were being prepared for shipment from a Pfizer facility in Portage, Mich., in December. (Getty Images)
