NO. For people who have received mRNA COVID-19 vaccine, the vaccine will not affect SARS-CoV-2 viral test (PCR or antigen tests results). The vaccine does not contain the live virus and cannot cause you to test positive on viral tests, which are used to see if you have a current infection.
It is important to follow public health guidelines to help you and others stay healthy, even after you get vaccinated. If you have additional questions, please visit your state or local health department’s website, or refer to the CDC for more information.