Dr. Amesh Adalja, senior scholar at the Johns Hopkins University Center for Health Security, talks with Rachel Maddow about new guidance from the CDC that COVID-19 antibody tests are not a reliable source of information about a person's past or future relationship to the coronavirus. Aired on 5/27/2020.
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CDC Undercuts Utility Of Antibody Tests As Key COVID-19 Tool | Rachel Maddow | MSNBC