Pfizer-BioNTech vaccine each week as the two pharmaceutical firms ramp up their deliveries and begin shipping shots from the United States.Pfizer and BioNTech have been consistently delivering around one million doses from Brussels each week since mid-March, but those numbers will double over the next month before increasing further in June.This week’s doses will also be the first to arrive from Pfizer’s plant in Kalamazoo, Mich., after the U.S.
government previously restricted vaccine exports to inoculate its own citizens. Canada is holding back its 1-shot J&J COVID-19 vaccine.