Free COVID tests are being offered through the U.S. government again. Each household is eligible to receive four free at-home tests, and they will start being shipped out the week of Oct. 2.

While experts advise people who think they may have COVID-19 to test on day 1 of symptoms, a new study suggests that for people using home (rapid) kits, testing again on day 4 may yield the most ...

The government has already disbursed more than 900 million free at-home COVID-19 tests, and will be reopening its free test kit portal.

With COVID-19 cases rising across the country, you may be pulling out a leftover at-home rapid test.

After exposure to COVID-19, most infections become detectable within 3–7 days. Testing too early can yield false negatives, ...

Summer is almost over and has brought with its end a rise in COVID-19 cases as students return to school and adults return to the workplace. At-home COVID testing has also seen an uptick as we try … ...

leading to inaccurate or invalid test results. See below to find out if your box of COVID-19 tests is still OK to use, as it's possible the expiration date has been extended. How do I know if the ...

The COVID-19 test kits will detect current COVID-19 variants and may be used throughout the remainder of the year. Here's how to order yours.

The XFG COVID-19 variant, aka "Stratus," is spreading rapidly in the U.S. as cases climb. Here's what to know about symptoms ...

California's latest isolation guidelines for people who test positive for COVID-19 includes the guidance that people without symptoms no longer have to isolate. Here's what you need to know.

How does it work? In an emailed statement, the FDA explained that when many COVID-19 tests were first manufactured, studies indicated the products would have a shorter shelf life than they do.

What do COVID-19 test expiration dates mean? The expiration date listed on your box of COVID-19 tests is the last day the test is expected to perform effectively.