World UK authorizes emergency use of Pfizer and BioNTech COVID-19 vaccine December 2, 2020December 2, 2020Kim Hjelmgaard, USA TODAYComments Off on UK authorizes emergency use of Pfizer and BioNTech COVID-19 vaccine Pfizer and BioNTech win permission for emergency use of their COVID-19 vaccine in Britain, the world's first shot backed by rigorous science.