Jamie*, 29, is HSV-positive and contracted herpes from her husband. But, she explains, “He only had one outbreak when he was young and that was it. So he didn't realize what it was.” Jamie was infected three years into their relationship simply because he had outbreaks that infrequently. She says, “I was worried he had cheated on me, but then found similar stories online, and our outbreak patterns underscore that what happened is very possible.”
Herpes is transmitted via skin-to-skin contact, not through blood or saliva. Cullins explains that someone with HSV can be shedding the herpes virus without having an outbreak (known as asymptomatic virus shedding), and infect somebody that way. Suppressive antiviral medications, like acyclovir or valacyclovir, inhibit HSV replication, which decreases shedding but does not completely eliminate it, says Johnston.
Because the herpes virus is so common most people who have either genital or oral herpes do not know that they have it. Additionally, the symptoms of HSV1 or 2 may be mild or at time, may not appear for days, weeks, or even years and sometimes no symptoms of herpes are present at all. It is important to note that symptoms do not have to be present in order to contract this virus, so it is important that you prevent transmission through proper hygiene and awareness.
A doctor will base a presumptive diagnosis on information provided by the patient and on the physical examination. The characteristic appearance of the herpes sores leaves little doubt about the diagnosis, so the typical appearance of the sores is key to the diagnosis. This appearance helps distinguish oral herpes from oral thrush, shingles, gonorrhea, and syphilis. In addition, chapped or sunburned lips can resemble oral herpes, but the tissue stain (Tzanck smear, see below) shows no virus-induced cell changes. Further testing is usually not necessary but is sometimes done.