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 ...

Over-the-counter multiplex tests for more than one illness may soon come to a pharmacy near you. Paco Burgada/iStock via Getty Images A scratchy, sore throat, a relentless fever, a pounding head and a ...

Antigen tests that are ready in 15 minutes and can be stored and used at home have been crucial for many who are trying to mitigate risk of contracting the coronavirus. But now some people with ...

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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 ...

It was possible -- albeit rare -- for people not infected with SARS-CoV-2 to have persistent false positive rapid antigen COVID-19 tests, longitudinal data showed. Among a large cohort of over 11,000 ...

Molecular tests are far superior to rapid antigen tests—and now you can get them for home use. Last week, I was about to go on a date, and because I'm severely immunocompromised, we agreed he would ...

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 ...

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 ...

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 ...

RSV is short for respiratory syncytial virus. It’s a virus that can cause respiratory infections in your lungs, nose, and throat. It’s best to test for RSV soon after your symptoms start. That’s ...

Since the start of the pandemic, the FDA has issued emergency use authorizations to a whopping 444 diagnostic tests and sample collection devices to detect the COVID-19 virus. In recent months, ...