And yes, I totally agree with Rarechild about the stigmatization of STI's. Like any other infections or diseases, they are a part of life. Contracting chlamydia does not equal being an irresponsible slut.
And honestly, most STI's are easily treated when caught. Yet they do so much damage (like any other infection can) if it's not caught. Nobody should have to feel shame when going to a doctor to seek treatment. More people would be getting this stuff treated much sooner if that stigma wasn't there.