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Up To Date

COVID-19 Antibody Tests Are More Popular Than Ever, But Do They Work?

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A lab worker wearing a white lab coat, goggles and protective gloves sits at a bench with multiple containers of testing vials.
Rani Levy
Regeneron Pharmaceuticals
A research associate works on cell cultures in an infectious disease lab.

Given the popularity of COVID-19 antibody tests, we hear lessons on what antibodies are, the reliability of home testing and whether having antibodies in your system will protect you from infection.

What are antibodies and how do they work? We get answers from a respiratory virus researcher.

Steve Kraske is the host of KCUR's Up To Date. Follow him on Twitter @stevekraske.
Luke X. Martin is associate producer of KCUR’s Up To Date. Contact him at or on Twitter, @lukexmartin.
Danie Alexander is the senior producer of Up To Date.