COVID-19 is surging as the United States heads into winter, with 100,000 new cases reported in a single day for the first time on the day of this podcast recording. The presence of this virus is a constant in our lives and our communities, and more and more of us have been tested for the coronavirus or are considering it. But how do you know when to get tested, which test to get, and how to interpret the results? With so much discussion of false negatives and false positives and the correct timing of testing, even the savviest of us can find it very confusing. And with the holidays approaching, some of us want to know if testing can be used to see family safely. Our infectious disease experts, Justin Lessler and Michael Mina, are back to provide their expertise on COVID-19 testing on this latest episode.