Is it possible for some people to be immune to herpes?

In a way: About 80% of the us has been exposed to herpes simplex type 1 (hsv-1) and about 30% to hsv-2. Many people have never had cold sores or genital lesions and have no idea they were exposed unless someone tests their antibodies to these viruses. Once you have herpes it lives in your nerves and might reactivate with stress or other events that decrease the immune system.