I'm not a medical professional although we do have several here that maybe will chime in with some expert knowledge, but your osteopath is correct that a surprisingly high percentage would test positive for one or both. Basically, a whole lot of people who think they don't actually do. Testing positive and "having" something are kind of two different things though, and that's where the rub is. For example, I remember as a little kid having oral cold sores, i.e. HSV-1. So, there's a chance I would test positive for that I expect. Does that mean I have herpes? Depends how you look at it, but in my mind, no, and I'm not going to pay money to get tested for something I already know the answer to and I haven't had a symptom of in decades now even though I may still "have" it by some's definition. On the other hand, if I did have an active cold sore, I certainly wouldn't be at the club kissing anyone either. So, right now, I think the answer is a definite yes, you should disclose. 15 years from now and this is all a distant bad memory with absolutely nothing in between now and then, then it gets a little more gray area I think. I'm sure some will disagree with that and that's certainly their right, but at that point, I think you would be in that what I read in one study as the 75-80% (of Americans) that carry either HSV-1 or HSV-2. I can say for a fact that I've not have 75-80% of playmates disclosing anything to me.