This is an interesting question. Because the last thing you want is to have a vaccine, then be denied boarding at the airport because you acted responsibly. Fortunately, that isn’t going to happen.

Neither the recently authorized and recommended vaccines nor the other COVID-19 vaccines currently in clinical trials can cause you to test positive on viral tests, which are used to see if you have a current infection.​

If your body develops an immune response, which is the goal of vaccination, there is a possibility you may test positive on some antibody tests. Antibody tests indicate you had a previous infection and that you may have some level of protection against the virus. Experts are currently looking at how COVID-19 vaccination may affect antibody testing results.