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Coronavirus Update: Antimalarial-Drug Studies Retracted, Musk Slams Amazon

Two studies casting doubt on the effectiveness of hydroxychloroquine and chloroquine against Covid-19 were retracted; Elon Musk blasted Jeff Bezos and Amazon for rejecting a book; George Floyd’s autopsy says he was positive for Covid-19. WSJ’s Jason Bellini has the latest. Photo: George Frey/Reuters