About 3,700 people in Sweden were told in error that they had the coronavirus due to a fault in a COVID-19 testing kit from China, the Public Health Agency said on Tuesday. The kit from BGI Genomics could not distinguish between very low levels of the virus and a negative result, the agency said. The kits were used by people in Sweden conducting at=home tests between period March and August, the agency said. 'The supplier must adjust the performance that is required for this test to be used,' Karin Tegmark Wisell, the head of its microbiology department, said "The two laboratories have analyzed samples from a total of ten regions in Sweden, of which nine have received incorrect test results. This applies to Stockholm, Västra Götaland, Gävleborg, Västerbotten, Västmanland, Dalarna, Västernorrland, Sörmland and Blekinge," the agency said in a statement. The agency also noted that a majority of the people that received the false positive test results "have ...