Thank you - as always, your feedback is very helpful. I'd like to read the data you referenced on long term viral shedding - was it a publication?
Welcome back to the forum. I'm glad you have found an understanding partner, to complement your own sober attitude toward your herpes, as we discussed a few months ago.
You don't mention one important aspect of all this, your partner's HSV-2 status. Even if he has no history of genital herpes, remember that 20% of adult North Americans have HSV-2. If he is one of them, he is immune to a new HSV-2 infection and there would be little or no risk of transmission. He should consider testing so you know whether he is susceptible or not. (Not that I wish him a positive result, but it certainly would be convenient!)
To your questions:
1) Very recently (since your last thread) research results have become available on long-term viral shedding. Unfortunately, the results are not what you would hope: asymptomatic shedding of HSV-2 continues in most infected persons 10+ years after their initial HSV-2 infections, including people with few or no symptoms of recurrent herpes.
2) Symptomatic recurrent outbreaks do not necessarily occur at the site of the initial infection. Recurrent episodes can occur anywhere from waist to upper thighs. (Think of the parts of the body covered by men's boxer shorts -- that's where recurrent HSV-2 episodes are possible.) However, regardless of where the symptomatic outbreaks occur, most people have asymptomatic genital shedding; for women, that means the vagina, cervix, etc. You cannot assume there is no potential for transmisssion just because there are no symptomatic outbreaks or because they occur on, say, the buttocks or lower back.
3) Basically, you are asking whether irritation or trauma from sex can increase HSV-2 transmission potential by people who happen to have asymptomatic shedding at the same time. It makes sense that might happen, but there are no data. I cannot judge how much higher the risk might be, if at all.
4) See no. 1. Frequency of asymptomatic shedding is unrelated to severity of the initial infection or recurrent outbreaks.
5) Quite possible. Some infected persons with asymptomatic shedding undoubtedly have internal lesions that cannot be felt or easily seen.
6) Valacylovir is extremely safe. There have been no reports of serious adverse effects from long term treatment.
7) To my knowledge, hormonal contraception does not make any difference. If there is a slight increase in shedding rate, it is minor.
Having said all that, despite the recent research results, other data show that HSV-2 transmission risk declines with time. Specifically, in monogamous couples in which one has HSV-2 and the other does not, transmission is less common when the infected person has had it a long time. So although some risk of transmission undoubtedly persists, my guess is that the risk in your situation is relativley low -- and is further reduced by taking valacyclovir. (By the way, I agree with the higher dose you are taking. I always prescribe 1 g daily rather than the officially recommended 500 mg.)
Bottom line: Probably overall low transmission risk, but definitely not zero. I do recommend that your partner be tested.
I hope this helps. Best wishes-- HHH, MD