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 ...

How to get a molecular/PCR test Outside of your home, your main options now are urgent care clinics and places that do testing for travel. In both cases, they’ll be expensive. In the case of urgent ...

A false positive result is possible with a rapid COVID-19 test. It happens when a person does not have COVID-19 but still tests positive for the disease. People can use a rapid COVID-19 test at home ...

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 ...

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 ...

Most people who contract COVID-19 likely won't experience symptoms for more than two weeks at most, but could test positive even after that. According to the Centers for Disease Control and Prevention ...