It causes painful sores on the mouth, anus, penis, or in and around the vagina.
Herpes can infect men, women, and children.
This virus can be passed from one person to another during anal, oral, or vaginal sex. This usually happens when the infected person has sores. The virus can be passed without sores, too. You can get the Herpes virus from oral sex, either from the mouth to the sex organs, or from the sex organs to the mouth. For a while you may also feel tired or sick, and get headaches or a fever.