Curiosity Killed Him

http://microbemagic.ucc.ie/about_microbes/viruses_work.html I think it's important to get at least a basic understanding of how viruses work. The short answer is: Yes, but not JUST an std. Any virus that has infected cells contained in saliva, semen, blood, etc. can infect someone who comes in contact with said cells. So in that sense, I guess you could any virus can potentially be an std.