Ducharme is a contributor to TIME. A nurse practitioner administers COVID-19 tests in the parking lot at Brockton High School in Brockton, Mass., on Aug. 13, 2020. A nurse practitioner administers ...

Every American traveling abroad needs to take an antigen test to return to the United States. But the start of the trip is often even more cumbersome, as many other countries (nearly every one I have ...

(CNN) -- One is widespread but has key shortages across its supply chain. One remains questionably reliable and is only helpful after the fact. And one is still early in development -- but could speed ...

In an ideal world, the U.S. would be awash in COVID tests. Anyone exposed to the coronavirus could self-test or go to a lab or clinic if necessary. But right now, self-tests are in short supply in ...

Each week, we answer frequently asked questions about life during the coronavirus crisis. If you have a question you'd like us to consider for a future post, email us at goatsandsoda@npr.org with the ...

We answer key questions about COVID tests: What types are there? Should you self-test right after exposure to someone with COVID? And what should... Each week, we answer frequently asked questions ...

In 2003, Kary Mullis took The Scientist readers behind the scenes of the night in 1983 when he came up with the idea for PCR. He included a photo of his lab notebook that depicts his very first ...