NEW YORK -- Millions of Americans have purchased rapid COVID-19 tests online or at local stores and signed up to receive test kits through a free government program. Unlike conventional, lab-processed ...

SAN FRANCISCO -- The recent outbreak of the omicron variant has many people running for the store for an over-the-counter rapid test. But simply taking the test once isn't enough to tell you if you ...

At present, the FDA lists over forty emergency-use approved at-home COVID tests on its website from over thirty different brands. Some tests are rapid at-home antigen tests that give results in as ...

The Antigen test uses the same technology as the rapid flu or strep test. The rapid test can be very accurate, but your symptoms, your exposure, and your doctor's guidance dictate which test is right ...

HOUSTON, Texas -- As things open back up, we're seeing some places require COVID-19 testing. At-home rapid COVID tests can produce results in minutes. To find out how they work and just how effective ...

NEW YORK -- Should you take your COVID tests by swabbing your throat instead of your nostril? ABC's Chief Medical Correspondent Dr. Jen Ashton says it really depends on the test. Dr. Ashton joined ...

Americans can again order free rapid coronavirus tests by mail, the Biden administration announced Thursday. People can request four free at-home tests per household through covidtests.gov. They will ...

It seems easy enough to take a COVID-19 test at home. But what if your results aren't so simple to interpret? If you get just a faint line, does that mean you're actually positive for COVID? I know ...

The US government has been helping people detect COVID-19 at home for several years with free COVID test kits delivered by the US Postal Service. On Sunday, March 9, the Department of Health and Human ...

Nathaniel Hafer receives funding from the National Institutes of Health and the National Science Foundation. Anuradha Rao receives funding from the National Institute of Biomedical Imaging and ...