A false positive result is possible with a rapid COVID-19 test. It happens when a person does not have COVID-19 but still tests positive for the disease. People can use a rapid COVID-19 test at home ...

After a recent COVID-19 exposure, Dr. Christina Astley tested positive on an at-home test—but just barely. The line signifying a positive result was so faint that Astley, an endocrinologist at Boston ...

The BinaxNOW COVID-19 Antigen Self-Test is an FDA-approved at-home test kit. It can detect active infections with SARS-CoV-2, the virus that causes COVID-19, in ...

The Food and Drug Administration has granted authorization of a COVID-19 and flu test that can be used without a prescription. The authorization, announced Monday, uses a nasal swab to detect the ...

Rapid COVID tests are convenient and easy to use because you can take them at home. But it's important to know how to interpret their results, when you should take another rapid test and when you ...

COVID-19 rapid tests are easy to take—and then toss. So most people never report their results, which leaves health officials with an incomplete picture of how much virus is circulating and where. The ...

Taking a COVID-19 test at home seems simple enough: If you get a line, you're positive for the coronavirus. But what if your results aren't so obvious? For instance, if you only get a very faint line ...

If you've accumulated a stockpile of rapid at-home COVID-19 tests over the course of the pandemic — including a handful of free products delivered by the government to your home — you may be surprised ...

SAN ANTONIO – Expecting a COVID-19 test in the mail? Don’t leave it in your mailbox too long, experts say. Heat and humidity could affect its accuracy. Bexar County’s current COVID-19 risk level is ...

As fall temperatures set in, cold and flu season gets into full swing, and holiday travel picks up, people will undoubtedly have questions about Covid-19 testing. Is this the year people can finally ...

Some 50% of people who test positive for Covid-19 on a rapid test after five days of infection are likely no longer contagious, a Journal of the American Medical Association study released on ...

For instance, if you only get a very faint line, it might be hard to know whether or not that means your results are positive. I know how that feels firsthand. After more than two years of evading ...