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 ...

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 ...

COVID-19 rapid tests are distributed in Brooklyn in late December. Self-tests are in short supply in many parts of the country. (Bryan R. Smith/AFP via Getty Images) There's the rapid, do-it-yourself ...

Polymerase chain reaction (PCR) is a fundamental molecular biology tool that scientists use to amplify and analyze genetic material, such as DNA and RNA. PCR involves the enzymatic amplification of ...

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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 [email protected] 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 ...

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 ...