Rapid COVID tests are convenient and easy to use because you can take them at home. But it's important to know how to interpret their results, when you should take another rapid test and when you ...

Add Yahoo as a preferred source to see more of our stories on Google. By now, most of us know the basics of taking a COVID-19 test at home. With cases, test positivity and hospitalizations due to ...

At-home coronavirus screening has become a way of life for many Californians, but some medical experts are now cautioning that one test may not be enough to definitively determine whether someone is ...

At-home rapid tests have proven to be a powerful weapon in the country's battle against the coronavirus and its latest variants, but the surge of the omicron variant has left U.S. consumers to contend ...

You swabbed the inside of your nose and performed the at-home rapid antigen test for COVID-19 and thankfully, it was negative. Hold on. Do the test again, says the U.S. Food and Drug Administration, ...

WORCESTER – Anyone who gets a negative result for COVID-19 from an at-home rapid antigen test shouldn't assume they're not infected, and should keep testing, according to a safety recommendation ...

QuidelOrtho Corporation QDEL recently announced that it has been granted a CLIA Waiver by the FDA, which applies to its new Sofia 2 SARS Antigen+ FIA (fluorescent immunoassay). The Sofia 2 SARS ...

HOUSTON, Nov. 26, 2025 /PRNewswire/ -- As the holiday season approaches, gatherings among family and friends are expected to increase the risk of respiratory virus transmission, including COVID-19 and ...

For instance, if you only get a very faint line, it might be hard to know whether or not that means your results are positive. I know how that feels firsthand. After more than two years of evading ...