Herpes simplex is the name of the virus that causes herpes infections such as oral herpes/cold sores, genital herpes, herpetic whitlow, and herpes gladiatorum. Oral herpes refers to a location of infection -- around the mouth.
There is no such thing as a herpes immunity. You can get genital herpes even if you have oral herpes and vice versa Also, if you brush on someone's herpes you get herpes too. -Professional scientist! (Told you Kristina)