The COVID-19 pandemic brought the term "Polymerase Chain Reaction testing" into the mainstream. The PCR method is a type of ...

This test detects bits of the virus itself and can tell you if you’re currently infected. Swabs are used to collect samples from the mucus membranes in the nose and throat where the virus may be ...

Research continues to show the influence your gastrointestinal (GI) system (or your “gut”) has on your overall health. While certain symptoms, such as indigestion, mood changes, and skin diseases, ...

The rapid spread of COVID-19 has launched a flurry of new tests for the highly contagious virus, as researchers and medical providers race to track and understand the pandemic. Yet Illinois — like ...

Ducharme is a contributor to TIME. A nurse practitioner administers COVID-19 tests in the parking lot at Brockton High School in Brockton, Mass., on Aug. 13, 2020. A nurse practitioner administers ...

If you don't feel well, you may worry that you have COVID-19. The only way to know for sure is to take a test. At-home tests can tell whether you have the virus right now. More specialized antibody ...

Another challenge facing test designers is that early detection may not necessarily save lives. A crucial factor, and ...

Add Yahoo as a preferred source to see more of our stories on Google. Grail's Galleri test screens for more than 50 different types of cancer from a single blood draw. (Getty Images) (Getty Images) If ...