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 ...

Add Yahoo as a preferred source to see more of our stories on Google. "Knowing how long you will test positive for COVID-19 is crucial for patients as it provides clarity on the duration of their ...

A COVID-19 antigen test with results that can be read directly from a test card received an emergency use authorization on 26 August, the US Food and Drug Administration (FDA) announced. The ...

The potential for IgM cross-reactivity with rheumatoid factor–positive serum samples was observed in blood tests used to detect IgM SARS-CoV-2 by means of gold immunochromatographic and enzyme-linked ...

A leading pharmacist has issued a warning to people who test positive for Covid, urging them to isolate at home for five days in order to stem the spread of two contagious new strains of the virus.

The Food and Drug Administration is making it easier for people to simultaneously test themselves for COVID-19 and the flu at home. The agency this week authorized the Healgen Scientific's Rapid Check ...

CHICAGO, Ill. -- Scientists are continuing to develop new COVID-19 testing methods. Everything from throat swabs and saliva tests to breathalyzers are potential options. The federal government has ...