One in five people infected by the new coronavirus does not present a symptom, revealed on Monday a study conducted in one of the main foci of the pandemic in Germany.
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A team of researchers from the university of Bonn has carried out a detailed study of patients identified in Gangelt, a town of about 11,000 inhabitants located in the district of Heinsberg, one of the main foci germans after the participation at a carnival a couple infected.
