Add Yahoo as a preferred source to see more of our stories on Google. As the federal health emergency ended May 11 and COVID numbers are on the rise, here’s how you can still access tests, at-home and ...

There are three different ways to test for COVID-19: PCR tests, antigen tests and antibody tests. Each method is best for a different stage of COVID-19 infection. Used in sequence, all three methods ...

You may get a PCR test, which can show a positive result for up to three months after recovery. If you take a rapid antigen ...

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 ...