I was an early believer in the usefulness of at-home rapid COVID tests. Used correctly, they can decrease the spread of COVID-19. The Biden administration announced last week that free tests will once ...

Most of us have taken a COVID test at home. The uncomfortable nasal swab, the anxious waiting as the red lines bleed into either positive or negative. And then finally, the result. The whole process ...

Mahmoud Illean / AP As the COVID-19 pandemic enters its fourth year, a negative result on a little plastic at-home test feels a bit less comforting than it once did. Still, you dutifully swab your ...

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 ...

As fall temperatures set in, cold and flu season gets into full swing and holiday travel picks up, people will undoubtedly have questions about COVID-19 testing. Is this the year people can finally ...

A recent study posted on the medRxiv* preprint server has assessed the sensitivity of antigen-based rapid diagnostic tests (Ag-RDTs). Study: Comparison of the analytical and clinical sensitivity of ...

A study led by Osaka University recently found that the sensitivity of rapid antigen tests (RATs) for the Omicron variant of COVID-19 when compared with polymerase chain reaction (PCR) tests was 0.63 ...

The U.S. Food and Drug Administration said on Tuesday it is alerting clinical laboratory staff and healthcare providers that false positive results can occur with COVID-19 antigen tests.

The Madrid capital region is pressing the Spanish government to allow pharmacies to carry out mass antigen testing for COVID-19, tapping into a broad debate on the efficiency of the rapid tests.

More than 56,000 COVID-19 antigen rapid tests are being recalled because they may provide inaccurate results, according to federal health officials. Universal Meditech Inc., which initiated the ...

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 ...