WASHINGTON -- The US Food and Drug Administration has granted emergency use authorization to the first Covid-19 test that spots chemical compounds associated with the coronavirus in breath, the agency ...

For anyone still struggling with symptoms weeks or even months after a bout of COVID-19, new research offers hope for a valid, reliable diagnosis of long COVID via blood test. One of the hardest ...

Nothing puts a damper on your holiday plans like a positive COVID-19 test, am I right? But what if that line is, like, super faint? Do you still have COVID—or can you go ahead and attend your office ...

Molecular tests are far superior to rapid antigen tests—and now you can get them for home use. Amanda Blum is a freelancer who writes about smart home technology, gardening, and food preservation.

At-home rapid COVID-19 tests can reveal more about viral load than a simple positive/negative result, according to experts. "By definition, the basic technology suggests that you somehow have to go ...

STATEN ISLAND, N.Y. — With the terrifying coronavirus (COVID-19) pandemic of 2020 behind us and the world now returned to normal, many people have moved away from vaccination or even testing for the ...