Dude that's f*cked up lol.
Here's a link with sources you may want to read up on.
http://www.trutv.com/shows/adam-ruins-everything/blog/adams-sources/adam-ruins-sex.html
"The reason 4 out of 5 carriers don't know they have it [herpes] is that they don't even notice. A lot of herpes carriers never have any symptoms at all."