But the likelihood of it happening is rare, as there are only a few documented cases. For these cases testing out to six months is warranted, according to the CDC's guidelines. Then stretch the dam or condom over the vulva or anus with the lubed side facing down. Next, I must point out you also state: One survey asked young MSM who cruised for sex online to list their main worries. I am 29 years old and have only ever slept with one person, who was also negative. An insertive partner has less risk than a receptive partner. You have more experience then most experts in the field, I will be interested to hear your thoughts on the subject, if I am wrong then there is a learning point for me from a well respected World expert! No straight guy question about lap dances, but a real risk. Others never wear their seatbelt and text while speeding on the freeway during rush hour. Health care professionals have contracted HIV in the workplace, usually after being stuck with needles or sharp objects containing HIV-positive blood. The medications you listed do not increase the HIV risk associated with oral sex. Men or women who have sexually transmitted infections STIs , such as genital herpes or syphilis, are more likely to transmit the virus if they are HIV positive or to contract the virus if they are HIV negative. The reason why sexual activity is a risk for HIV transmission is because it allows for the exchange of body fluids. Viral load is the term used to describe the amount of HIV in a sample of body fluid. In late researchers looked at all the available evidence and calculated that the risk of contracting HIV from oral sex was very low, but that it wasn't zero.