What are the chances of catching it airborne if you are hanging out with someone who is infected? What are the chances of catching it if you are close for decent periods of time with someone who is infected? Mono is a herpes variant, right? So if someone with mono gave oral sex to someone else, would that person in turn develop genital herpes? How about if someone gave oral sex to someone with mono, would that person catch herpes? Or is it ONLY through saliva?