cisvax 

A person who believes that they were born with immunity and identifies as naturally vaccinated.

The cisvax didn't need the jab as they had their natural immunity.

cisvax by Aussie Banter July 28, 2021

cisvaccinated 

Describes a person whose vaccination status is the same as their vaccination status at birth.

I’d love to go to the pub, but I’m cisvaccinated, and not allowed in!

cisvaccinated by Tryin’ Evans November 27, 2021