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Researchers identify five new cases of ‘double mutant’ Covid variant in California

A medical worker wearing personal protective equipment (PPE) inserts a Covid-19 test tube into a box at a drive-thru testing site at the Alemany Farmers Market in San Francisco, California, Nov. 19, 2020. David Paul Morris | Bloomberg | Getty Images Stanford University researchers have identified five new cases of a “double mutant” Covid-19 strain… Read More »