Add Yahoo as a preferred source to see more of our stories on Google. A rapid COVID-19 test swab is processed. (Photo by Brittany Murray/MediaNews Group/Long Beach Press-Telegram via Getty Images) ...

Taso and Megan Stefanidis of Manalapan, New Jersey, developed symptoms of COVID-19 a few days after gathering with their families for Christmas. Other family members ended up testing positive for the ...

For most people, having an at-home COVID test or two handy is just a normal part of life these days. But, if you happen to take a test and get a positive you weren’t expecting, it’s more than ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." TAKING A COVID-19 TEST is probably your first instinct when you wake up with a fever or sore throat or ...

False-positive COVID tests results—where the patient isn’t infected but receives a positive result—trigger a cascade of unnecessary patient management activities. “False positives may lead to ...

The FDA urged clinical laboratories and healthcare providers to retest any patients who have recently received a positive result from two of Abbott’s PCR COVID-19 assays after identifying a heightened ...

Many scientists who usually have nothing to do with viruses or infectious disease are turning their attention to COVID-19. For example, one wildlife biologist is raising questions about the accuracy ...

Viruses that cause measles and the common cold do not produce false-positive COVID-19 reverse transcriptase polymerase chain reaction (RT-PCR) tests, contrary to posts circulating widely online. A ...

Sunny Hostin and Ana Navarro were cleared to return to The View Monday after the co-hosts made a dramatic exit from the show on Friday. Both Hostin and Navarro, who are fully vaccinated against ...