Antigen and PCR tests diagnose COVID-19. Read about how these tests differ in their method of determining results, accuracy, timing, skill requirement, and costs.

If you have symptoms or need test results for an event, here's what you need to know about the different COVID-19 tests and their results.

Polymerase chain reaction tests, known as PCR, are the most common and most accurate tests for determining whether someone is currently infected with the novel coronavirus. How do they work?

Antigen tests are accurate. But they're less accurate than PCR tests. If you have symptoms and an antigen test is negative for COVID-19, take another antigen test after 48 hours to get the best ...

The PCR test identifies viral nucleic acids or genetic material. Catch up on the latest COVID-19 news here What is a rapid antigen test?

PCR is an abbreviation for Polymerase Chain Reaction that is used to detect the genetic material from a specific organism. This molecular test is capable of detecting the virus fragments. By ...

The PCR test currently used to test for COVID-19 was, indeed, created for that use. It's not a vaccine in disguise.

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.

Infectious disease expert Dr. Mark Kortepeter explains the pros and cons of at-home Covid diagnostic tests and how to interpret the results.

They are less sensitive than a PCR test and are looking for a specific viral antigen that implies there is an infection. Antigen tests can be done in a doctor's office, pharmacy or pop-up testing ...

The government says sequencing of positive PCR tests for travellers is important.