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Why Antibody Tests Don’t Yet Reveal Coronavirus Immunity I NOVA I PBS

Can an antibody blood test tell if you are immune to COVID-19? NOVA producer Caitlin Saks got the unusual opportunity to investigate her own blood to find out what exactly these “magic” molecules are, why public health professionals are eager to roll out antibody testing, and just what these antibody tests can — and can’t — tell us. UPDATE Mar 22, 2021: Since this video was first published in May 2020, antibody testing has improved substantially and can give a relatively accurate indication of whether or not someone has been infected with the virus. There is now a higher degree of confidence that if people have antibodies, they will have some level of protection. The exact level of antibodies needed for protection is still being worked out. Antibody testing hasn’t been a widely used surveillance method for detecting the prevalence of COVID-19 in the population, in part because some asymptomatic individuals do not develop detectable antibodies, and PCR testing – which is a nose or throat swab based test that detects the genetic material of the virus – is more efficient to diagnose symptomatic disease. Antibody testing remains an important part of the toolkit for clinicians and researchers for specific clinical scenarios and ongoing research questions. COVID-19 vaccines do produce a strong antibody response and provide a high degree of protection from the virus. To learn more, stream our hour-long documentary "Decoding COVID-19" on the PBS Video app or online: https://to.pbs.org/2xnYanv Or right here on YouTube:    • Видео   PRODUCTION CREDITS: Producer/Reporter: Caitlin Saks Digital Producer/Editor: Arlo Perez Camera: Stephen McCarthy Sound: Steve Bores Research and Production Assistance: Sukee Bennett Angelica Coleman Ari Daniel Robin Kazmier Christina Monnen © 2020 WGBH Educational Foundation