I was rather curtly told my expertise is not welcome. For the record, I have a 4 year honours Bsc, a Masters in life sciences, and yes, I've completed Mcgill's 4 yr MD program. As a practitioner, I have a vested interest in the public health of my community. The atmosphere of mistrust you refer to is scary, and can only lead to continued high risk behavior. Hell, any encounter, even protected, with an STW is high risk. I understand my expertise is not welcome, but please, everyone, wear a condom. If you don't, wash your penis and genitals afterwards with soap and water, and an early pee might help. Just trying to help.