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 ...

Nearly a month ago, on March 10, the U.S. had about 1,000 confirmed cases of COVID-19. Today, on April 7, the nation has a little over 12,000 confirmed deaths from the disease. What started out as an ...

At-home Covid tests can be ordered for free starting Monday. Households can now order four free tests for home delivery at COVIDTests.gov. According to the government website, orders will begin ...

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 ...