Video: Not sure if you’ve already had coronavirus? This test can (maybe) tell you

Many people are wondering if that bad cold they had back in February or March was actually the new coronavirus. In principle, an antibody test could tell you that, but most of the tests out there right now aren’t very good. We chatted with David Kroll to learn how these tests work, where they go wrong and why a test that’s 96% accurate is actually pretty bad: