There are three different ways to test for COVID-19: PCR tests, antigen tests and antibody tests. Here are the differences.

Do you need to test out of isolation? While testing out of isolation is not required, the CDC says those who choose to should use an antigen test and not a PCR test.

Molecular testing is evolving rapidly, with an increasing number of tests available. For example, COVID-19 PCR tests are a type of molecular testing that scientists rapidly developed in response ...

By providing quantitative information about Covid-19 infection, PCR testing can help guide isolation and return to school or work policies.

But antigen tests are “really good at telling us if we’re infectious or not,” she said during the May 17 conversation. “This is very different than PCR tests.

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.

A new COVID variant is spreading. Here's what you need to know about the incubation period, symptoms and when to take a test.

Free COVID-19 tests ending for uninsured Americans With funding stalled in Congress, providers must absorb costs or start charging.

COVID-19 PCR tests are not linked to human or reproductive cloning, according to Matthew Binnicker, the director of clinical virology at the Mayo Clinic.