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, ...

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 ...

These days, many people use at-home COVID-19 tests when they feel ill, rather than going out to get tested by a professional. (That’s when they bother to test at all.) But for all their convenience, ...

Early research backed by the National Institutes of Health on several popular rapid COVID-19 antigen tests suggest the kits will still work to detect cases of the Omicron variant despite a "reduced ...

As COVID-19 case numbers have been slowly rising across the United States, Americans are turning to at-home rapid antigen tests to suss out whether they are sick from a good-old fashioned cold, the ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Ellen Lee Ellen Lee is a writer focused on parenting and health gear. She has ...

People with diabetes have been urged to take extra caution during the COVID-19 pandemic. If you have diabetes, you’ve likely heard that COVID-19 is generally considered to be more dangerous for people ...

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 ...