"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 ...

The U.S. government is mailing out another round of free COVID tests to households that sign up. Older COVID tests still may be in your cupboard and OK to use, but you must verify the test’s ...

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 ...

The Food and Drug Administration issued a warning about allergy skin tests that are providing false negative results. The problem has to do with allergenic extracts which are used during skin tests.