NEW: Express access to COVID-19 vaccine record is now available.

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Viral Test for COVID-19

Test Overview

Note: This information is only about the test to diagnose COVID-19. It’s not about tests that show if you had COVID-19 in the past.

A COVID-19 test is a way to find out if you have COVID-19. It's a viral test that looks for COVID-19 virus in samples (such as swabs) from your nose or throat (breathing passages). There are different types of viral tests:

  • A polymerase chain reaction (PCR) or nucleic acid test looks for genetic material from the virus.
  • An antigen test looks for proteins on the virus.
  • ID NOW is a test that looks for COVID-19 genetic material in a different way than the PCR test. It’s similar to antigen tests.
The antigen test and the ID NOW are not as accurate (correct) as PCR. People who get an antigen or ID NOW test will need to have 2 swabs collected.

Antigen and ID NOW test results come back in a few hours. PCR tests may take a few days. Faster PCR testing or ID NOW testing is done for people who are very sick and need hospital care.

If you have questions about COVID-19 testing, ask your doctor or check your local or provincial health authority website for information.

Information about Viral Test for COVID-19

Adapted with permission from copyrighted materials from Healthwise, Incorporated (Healthwise). This information does not replace the advice of a doctor. Healthwise disclaims any warranty and is not responsible or liable for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.

Information about Viral Test for COVID-19

Adaptation Date: 6/14/2024

Adapted By: Alberta Health Services

Adaptation Reviewed By: Alberta Health Services