There was a situation where a girl took her boyfriend to court for giving her herpes. Can't remember if it was deemed some form of bodily harm so if you really wanted to and it was a serious non treatable STD you could.
This is hair splitting, isn't it? Yes, I'm aware of that particular case and I'm pretty certain that a criminal offence will exist, where intent is proven. Silverado would be much better placed to comment on the law than I and it's a very interesting topic to talk about on it's own merits.
I also seem to remember a German case recently, involving AIDS.
However, neither of these real life examples has anything to do with a complete lack of a regulatory framework
for prostitution. Your example above involves intent, which will have legal ramifications. What if I was infected by a prossie, simply on the basis that she didn't take care of herself to carry out regular checks at the GUM clinic? How will I obtain legal satisfaction if she was unaware? If prostitution was truly professional, involved training, with a recognised qualification and was subject to a regulatory framework, she'd probably be duty bound, rather than morally bound,
to conduct regular health checks or be struck off, so to speak!
So my point regarding 'professions' is that they tend to fall under some regulatory framework, a set of defined or expected stanards and sanctions apply where a member is found to be in breach of those standards. Prostitution isn't a profession for the very simply reason that it falls far short of the recognised tests as a profession. I've no doubt that you provide your services in a thoroughly professional manner, judging by all your positive feedback, but that doesn't make you a recognised professional in the wider sense of the word.