Covid-19 vaccine from Pfizer and BioNTech is strongly effective, early data from large trial indicate

By MATTHEW HERPER @matthewherper NOVEMBER 9, 2020 Pfizer and partner BioNTech said Monday that their vaccine against Covid-19 was strongly effective, exceeding expectations with results that are likely to be met with cautious excitement — and relief — in the face of the global pandemic. The vaccine is the first to be tested in the United States to generate