May be this is a correct place to post this. Some time ago I was discussing on a politics thread the issue of oral sex (in the Abu Ghraib prision, creating a risk to prisoners). Russ said I was misinformed. What's your idea? It seems to a lot of people believe oral sex is safe. https://www.physicsforums.com/showpost.php?p=207230&postcount=68 Pelastration: "And Russ, ever had the idea that AIDS is transferable by oral contact?" Russ: "You are misinformed." I gave you "the risk of transmission through oral sex was estimated to be approximately 0.04 per cent per contact." in https://www.physicsforums.com/showpost.php?p=207341&postcount=70. That study can be found here: http://www.ncbi.nlm.nih.gov/entrez/...ve&db=PubMed&list_uids=10430236&dopt=Abstract Pelastration: "As a PF mentor you should check before you post disinformation. Yes Russ, Yes ... you can get AIDS through oral sex." Russ: "I'm standing by that one: the info you provided says that aids can be contracted by fluid transfer in open wounds - and that is unrelated to the sex act. You could similarly say it is possible to get AIDS by shaking hands with someone who has AIDS. You can call that factually accurate if you want, but its extremely misleading." --- Now I go further here on PF/biology Russ my point was that "that AIDS is transferable by oral contact" and you said "You are misinformed." It seems to me that you want to apply a type of Heisenberg Uncertainty Principle reasoning on STD/HIV. Maybe a special super-position? I have no problem if you used your ideas (that AIDS is NOT transferable by oral contact) in your personal behavior. It your business and that of your partner(s). But I don't accept that you give the advise or give the impression to posters and visitors of Physics Forums that oral sex is a safe way to do sex. There is a risk. By the act of oral sex there is a related risk due a number of factors, and the most important is Blood. http://www.cdc.gov/ncidod/hip/BLOOD/UNIVERSA.HTM. The risks have been explained by a number of people with "Authority" based on "facts". Do you have any medical authority? Q&A on HIV Risk -- Kissing, Oral Sex, Symptoms: http://www.thebody.com/Forums/AIDS/Oral/Archive/Risk http://www.thebody.com/cdc/mm4627.html Q10. Will this change CDC's position regarding kissing and HIV transmission? No. CDC maintains that casual contact through closed-mouth or "social" kissing is not a risk for transmission of HIV. Because of the potential for contact with blood during "French" or open-mouth kissing, CDC still recommends against engaging in this activity with an infected person. Q11. What is the risk of HIV infection from oral sex? Getting semen, vaginal secretions, or blood from an infected person in your mouth puts you at risk of HIV infection. The risk of getting HIV from oral sex is not as high as from anal or vaginal sex, but there is a risk. Sores or cuts anywhere in your mouth or on a partner's genitals would make oral sex even more risky.