Medically reviewed by Jordana Haber Hazan, MD Key Takeaways PCR tests are very accurate and can find the virus even in people ...

Got a sore throat and the sniffles? The recent rise of rapid at-home tests has made it easier to find out if you have a serious illness like COVID-19 or just a touch of spring allergies. But while ...

Peek in medicine cabinets across the U.S. and you’ll find stacks of leftover COVID-19 tests. When symptoms arise, so do questions: When should I test? How accurate is it really? And what should I do ...

2025 update: This federal program has ended and free tests are not current available from the government website. Federal health officials have justified the millions they have spent on device ...

There's still a lot of confusion around the best time to take a COVID test and where to get them. Here, experts share their ...

Select independently determines what we cover and recommend. When you buy through our links, we may earn a commission. Learn more. At-home Covid tests can diagnose infection and are in stock now ...

Staff and military personnel at a Florida nursing home secure COVID-19 test samples. (Pfc. Orion Oettel/U.S. Army/) Maureen Ferran is an associate professor of biology at Rochester Institute of ...

BRUSSELS, Nov 18 (Reuters) - The European Commission recommended on Wednesday the use of rapid COVID-19 antigen tests mostly on people already showing symptoms because it said the kits were deemed ...

The COVID virus, or rather people's immune response to it, has changed and it might be prudent to wait a couple days after symptoms start before taking a COVID test, researchers report. "For COVID, we ...

How accurate are the coronavirus tests used in the U.S.? Months into the outbreak, no one really knows how well many of the screening tests work, and experts at top medical centers say it is time to ...

The days of free testing are long over, but you don’t have to pay full price.

A new study provides insight on how to make a new generation of rapid tests, including COVID, flu, RSV, and all-in-one tests, work better. Peek in medicine cabinets across the U.S. and you'll find ...