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 ...

Polymerase chain reaction (PCR) and rapid (antigen) tests for COVID-19 both involve taking a swab. Results for a PCR test take longer, as it needs to go to a laboratory. It is more costly but tends to ...

Two tests are apparently better than one. Starting today, anyone looking to take a rapid COVID-19 test at any of the 27 Miami-Dade County-run testing sites will have to also take a PCR test, ...

As the various subvariants of omicron continue to circulate in the U.S., rapid at-home tests remain an important tool for protecting yourself and others. Home tests are appealing because they allow ...

At-home rapid COVID antigen tests are playing a larger role in the fight against disease variants. Photo credit: Rose Hoban This story originally published online at NC Health News. In the coming days ...

Antigen tests can identify the presence of antigens within the body, which are substances that cause immune responses, such as the release of antibodies. The immune system, and antibodies specifically ...

If you ordered an at-home COVID-19 antigen test kit through the federal government, or got your hands on one in stores, finding out if you have COVID-19 can be done in just minutes. Over-the-counter ...

Add Yahoo as a preferred source to see more of our stories on Google. As the nation experiences what many experts believe is the second-largest wave of COVID infections since the pandemic started, ...

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 go ...

As the omicron variant continues to spread across the United States, at-home COVID-19 antigen tests have become an in-demand item. During the holiday season, at-home tests became stocking stuffers.

With COVID-19 case rates on the rise and the delta variant's highly contagious nature, doctors say people across California are increasingly curious about COVID tests. Doctor Nam Tran is the senior ...