Researchers often call the polymerase chain reaction test – known as the PCR test – "the gold standard" for detecting the COVID-19 virus. The test is considered highly reliable and effective, and it ...

Ducharme is a contributor to TIME. Ducharme is a contributor to TIME. For Rachel Robles, getting diagnosed with Long COVID was an uphill battle. She caught the virus in March 2020, when nearly nothing ...

Whether you’re already feeling sick or want to prepare for the cold season, here’s what you should know about buying a COVID test — at-home or PCR. COVID-19 cases have been on the rise (though still ...

Add Yahoo as a preferred source to see more of our stories on Google. By now, you’ve probably read a million articles and instructions on the proper way to swab with an at-home COVID-19 test. You ...

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

Have you recently taken a COVID-19 test? If you’re waiting for your results, Mayo Clinic diagnostic experts have some helpful guidelines to walk you through the process. It all depends on the type of ...