"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 ...

If you’ve been exposed to COVID-19, getting tested too early could provide a false sense of security with a negative test result. “If you’ve been exposed to a known case of COVID-19, your job is to ...

HOUSTON, Texas -- The Food and Drug Administration is issuing a warning about Curative coronavirus tests, stating the tests carry the risk of false negative results when used on people who are ...

There is broad consensus that widespread SARS-CoV-2 testing is essential to safely reopening the United States. A big concern has been test availability, but test accuracy may prove a larger long-term ...

All skin tests doctors commonly use to check for food allergies can provide false negative results, the Food and Drug Administration has concluded — meaning people with potentially life-threatening ...