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Pfizer-BioNTech and Moderna scramble to test their COVID-19 vaccines against highly infectious variant

Pfizer-BioNTech and Moderna are scrambling to test their COVID-19 vaccines against the new fast-spreading variant of the virus that is raging in Britain. Ugur Sahin, chief executive of Germany‚Äôs BioNTech, which with partner Pfizer took less than a year to get a vaccine approved, said on Tuesday he needs another two weeks to know if […]