I spoke with Saahir Khan, an assistant clinical professor who specializes in infectious disease at UCI. … Khan pointed out a lot of the tests out there look for antibodies that develop with several viruses within the coronavirus group – not just the strain causing this pandemic, SARS-CoV-2. … “Sometimes you can have antibodies to the virus that cause the common cold that could potentially cross-react with this test,” Khan said.
Some antibody tests for COVID-19 previous infection can give false results, experts say
ABC7, April 19, 2020 (Video)
April 19, 2020