The CDC says possibly 'less than half' of positive antibody tests are correct
of Covid-19 tests: molecular diagnostic tests, which can identify people with active infections, even when they have no symptoms, and antibody, or serology, tests, which indicate that a person was infected at some point in the past., an instructor of pathology and immunology at Washington University School of Medicine,"antibody testing is really helpful in monitoring how widely a virus has spread within a community.
However, the CDC has acknowledged that antibody testing can frequently be inaccurate, especially in populations where there is a low prevalence of the coronavirus.
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