Testing is an important way to help reduce the spread of COVID-19. If you have symptoms of COVID-19, you should get tested so that you can avoid infecting others.
A COVID-19 test is important when:
- There has been contact with someone who has COVID-19 and
- 5 days has passed since it happened
- Workplaces, school, or healthcare sites require screening
- Travel occurs, before leaving and when arriving home
- A healthcare professional or public health official asks for it
Types of COVID-19 Tests
Viral tests – This type of test will tell whether a person has an active infection at the time of the test. There are two main types:
- Laboratory Test
- Sample can either be a nasal swab or saliva
- Results usually in 1-3 days
- Results are reliable for people with and without symptoms
- No follow-up test required
- Common example: PCR test
- Rapid Test
- Sample is usually a nasal swab
- Results usually in 15-30 minutes
- Results may be less reliable for people without symptoms
- Follow-up test may be required
- Common example: Antigen test
Antibody test – This blood test may be able to tell if there has been a past COVID-19 infection. This test may also be called a “serology test.”
What Does a Negative Test Result Mean?
If you receive a negative result, that means that the coronavirus that causes COVID-19 was not found in your sample. A negative test does not completely rule out infection.
Last Updated October 2022