Antibody testing shows whether you've had the COVID-19 virus in the past. It's not the same as testing to see whether you have the virus now.

Add Yahoo as a preferred source to see more of our stories on Google. Starting Monday, American households can now apply to receive four free at-home COVID-19 tests from the U.S. government, though ...

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 ...

At-home COVID-19 tests have become commonplace for many households, but knowing when exactly to take a rapid test — or when to throw old ones out — isn't always straightforward. Here's what health ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. U.S. households will soon be eligible to order four free COVID-19 ...

Add Yahoo as a preferred source to see more of our stories on Google. an iHealth COVID-19 antigen rapid test kit The federal government may destroy its remaining supply of COVID-19 tests. The US ...

The government is sending out free COVID tests again. Sign-up is quick and easy. Doctors recommend getting your tests for the just-in-case. This is the seventh round of distribution of free COVID-19 ...

You may get a PCR test, which can show a positive result for up to three months after recovery. If you take a rapid antigen ...