(( VaginaPagina ))

I suppose it miiiiiiiight be possible that additional virus "support troops" might divert the body or briefly overwhelm the antibodies that were sufficient to keep your resident HSV troops suppressed? That's about all I can think of; I'd be surprised if he had a HSV-2 mutation that would give you concurrent HSV infections of HSV-2a and HSV-2b. (Heck, having a HSV-2 infection, from what I've heard, gives greater protection against HSV-1 in that location. So if the antibodies will fight off a definitely different strain, why wouldn't they fight off a minor mutation?)

But a doctor'd likely know better than I!