At this point in the pandemic, you or someone you know has probably received at least one COVID-19 test. But do you know which kind of test you got and the strengths and weaknesses of these different ...

In the age of COVID-19, as multiple variants have spread across the world, at-home tests have become tantamount to a saving grace for many individuals and families still grappling with the virus. The ...

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 ...

In a recent study posted to the medRxiv* server, researchers evaluated a rapid antigen test (RAT) that used saliva specimens to detect the presence of severe acute respiratory syndrome coronavirus 2 ...

Throughout the U.S., many have noticed it's pretty hard right now to get your hands on those over-the-counter rapid COVID tests. But the Biden administration is hoping to offer some relief. Today, it ...