Using clinical samples obtained from diagnostic labs throughout the U.S. from 2020 to 2023, the National Institutes of Health, through its Variant Task Force, analyzed the effectiveness of more than ...

Last week, I was about to go on a date, and because I'm severely immunocompromised, we agreed he would take a COVID test ...

Welcome to what some experts say is the country’s second largest COVID wave since the start of the pandemic. In the past few weeks, there’s been a striking increase in new cases, hospitalizations, and ...

Countries straining to contain a second wave of COVID-19 are turning to faster, cheaper but less accurate tests to avoid the delays and shortages that have plagued efforts to diagnose and trace those ...

You probably have a cabinet full of rapid COVID-19 tests you’ve accumulated. The expiration dates have come closer and closer, with some tests even reaching them. The Food and Drug Administration, ...

Taking a COVID-19 test at home seems simple enough: If you get a line, you're positive for the coronavirus. But what if your results aren't so obvious? For instance, if you only get a very faint line ...

If you’re feeling the early signs and symptoms of a respiratory infection — fever, cough, a sore throat, congestion, or even abdominal pain or diarrhea — it might be a good time to take a covid test, ...

Maxine Kwok, a violinist in London's oldest symphony orchestra, is delighted that rehearsals have resumed thanks to a rapid, lab-free COVID-19 test that gives the musicians the confidence to work ...