Antibody tests for Covid-19 wrong half the time, CDC says

Antibody tests for Covid-19 wrong half the time, CDC says

Antibody tests, often called serologic tests, look for evidence of an immune response to infection. “Antibodies in some persons can be detected within the first week of illness onset,” the CDC says. “Serologic test results should not be used to make decisions about grouping persons residing in or being admitted to congregate settings, such as […]