Many specialists see rapid at-home COVID tests as a crucial tool in the off-ramp to the pandemic -- assuming Americans know how and when to use them.

Some people are speculating that rapid tests have lost their ability to detect some of the newer coronavirus variants, but experts say it’s not the case.

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 ...

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 PCR tests. It was a courtesy—he felt perfectly fine— ...

To determine whether your COVID test is still usable, you can check the at-home COVID-19 tests listed on the FDA's website to see which brands have had their shelf lives extended.

At-home rapid COVID-19 tests can reveal more about viral load than a simple positive/negative result, according to experts. "By definition, the basic technology suggests that you somehow have to ...

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

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 ...

RSV tests include nasal swabs or blood tests to detect the virus's genetic material or antibodies, but rapid tests provide quick results.

Doctors can usually collect samples for flu tests very quickly, but people may have to wait for the results. Rapid tests take about half an hour, but slower tests may require an 8-hour wait.

Experts say rapid home tests still work to detect the latest variants of the virus that causes Covid-19, but how and when home tests are used has changed.