We’ll run through how the tests work and why it’s so hard to interpret what the results might mean.
Q&A on COVID-19 Antibody Tests
Background Science
The Facts on Coronavirus Testing
Federal officials have provided confusing and sometimes contradictory statements about the number and availability of tests to diagnose new coronavirus infections. We’ll explain how testing works, what happened with the CDC’s coronavirus test and what’s known about how many tests are available in the U.S.