Last week, I was about to go on a date, and because I'm severely immunocompromised, we agreed he would take a COVID test using one of my rapid home molecular tests. It was a courtesy—he felt perfectly ...

There are three broad categories of coronavirus tests in the U.S. Two diagnose whether you have an active infection, and a third indicates if you previously had the virus. Most tests look for bits of ...

Starting Monday, American households can now apply to receive four free at-home COVID-19 tests from the U.S. government, though they might appear to be expired. Once again, the U.S. government is ...

If you're testing for COVID-19, you'll want to know what a positive test looks like—and what it means if you get a faint line. For those who test positive, the time it takes for the line to appear on ...