http://symptomsofgenitalherpes.com/signs-of-herpes.html
Genital herpes is transmitted through intercourse, and is therefore properly categorized as an STD. There's been some suggestion that genital herpes can be transmitted through other means besides intercourse, through secondary means, but the evidence doesn't support this theory. Genital herpes is likely the most common STD: a safe estimate is that twenty percent of adults have it.