Coronavirus testing in the United States is moving into a new phase as scientists begin looking into people's blood for signs they've been infected by SARS-CoV-2, the virus that causes COVID19.
regularly uses serological assays in her research studies on influenza and dengue fever. She's now established serological testing for SARS-CoV-2 in her research lab.Serological tests for SARS-CoV-2 are blood tests. They look at serum or plasma – basically blood that has been processed to remove the cells – for evidence that at some point you've been infected with the coronavirus.
, which protect against the virus in question. Or it may measure what are called binding antibodies, a type that recognizes SARS-CoV-2 but does not necessarily protect against it. This spike protein is immunogenic, meaning it's one of the main targets of the body's immune response; an infected person would make antibodies against the spike protein. Theserum antibodies in the sample bind to the viral proteins on the plates.
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