Does COVID-19 vaccination change the results of a viral test for COVID-19 infection?

Question: 

Does COVID-19 vaccination change the results of a viral test for COVID-19 infection?

Answer: 
No, none of the approved COVID-19 vaccines in Canada can cause you to test positive on COVID-19 viral tests, which are used to see if you have a current infection.​
 
If your body develops an immune response to vaccination, which is the goal, you may test positive on some antibody tests. 
 
Date last reviewed: 
Friday, May 20, 2022