You're about to get a blood test to see if you have been exposed to Covid-19, the deadly disease caused by the novel coronavirus. You're hoping it will tell you that you have, right? That your blood ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (CNN) — Antibody tests used to determine if ...

As the world continues to navigate the aftermath and lingering presence of COVID-19, one question remains as relevant as ever: Which COVID-19 test is right for me—diagnostic or antibody? Whether ...

Dozens of blood tests are rapidly coming on the market to identify people who have been exposed to the coronavirus by checking for antibodies against it. The Food and Drug Administration doesn't set ...

Last month the White House issued guidelines suggesting a way to reduce the number of false positive results in antibody tests: Run two tests. But that strategy has not yet been validated for ...

There are three different ways to test for COVID-19: PCR tests, antigen tests and antibody tests. Each method is best for a different stage of COVID-19 infection. Used in sequence, all three methods ...

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Antibody tests used to determine if people have been infected in the past with Covid-19 might be wrong up to half the time, the US Centers for Disease Control and Prevention said in new guidance ...