How many proven oral sex infections solely from precum proven?

I read a lot about the "possibility" of HIV infection from Oral Sex.. but the studies I've read only mention 17 cases in the U.S. and do not distinquish between oral sex to orgasm.. i.e.: the swallowing of Semen.. and oral sex without swallowing semen. Can you point me to a study, website, report.. that specifically studies HIV infection risk from oral sex solely through precum? Instead of vague "risky, riskier" non scientific evaluations based on statistical calculations of probability.. I am looking for an actual study focusing solely on this issue... is there one out there?

Mr. Sowadsky's Response:

We also do not keep statistics on how many people became infected from pre-cum vs. semen. However, we do know that white blood cells infected with HIV can be found in pre-cum (also known as pre-ejaculatory fluid). Since HIV infected cells can be found in pre-cum, we therefore know that pre-cum poses a risk of infection, if it has an access to the partners bloodstream. Pre-cum normally does not pose a high risk of infection, simply because you are normally only exposed to a small amount of pre-cum, as compared to semen. Semen poses a much greater risk of infection, since one is normally exposed to a greater quantity of semen. The more pre-cum and/or semen one is exposed to, the greater the risk of infection. This is true whether we are talking about vaginal intercourse, anal intercourse, or oral sex. For any of these activities, there is some risk of infection from pre-cum alone. However, the risk would be much greater if the partner was exposed to semen.

Since studies have shown that pre-cum does have the virus in it, we know there is some risk of infection during vaginal, anal, and oral sex. But nobody can quantitate the risk other than to say, the risk is less than exposure to semen; also, the more pre-cum and/or semen you are exposed to, the greater the chances that infection will take place.

References:

Detection of HIV-1 DNA Sequences in Pre-Ejaculatory Fluid
G. Ilaria et. al.
Lancet
Vol 340, 12/12/92
page 1469

Pre-Ejaculatory Fluid as Potential Vector For Sexual Transmission of HIV-1 J. Pudney et. al.
Lancet
Vol 340, 12/12/92
page 1470

If you have any further questions, please call the Centers for Disease Control at 1-800-342-2437 (Nationwide).
. I'm glad to help!

Terms of Use: Please remember that this forum is designed for educational purposes only, and experts are not engaged through this forum in rendering legal or medical advice or professional services. Experts appearing on this page are independent and are solely responsible for editing and fact-checking their material. Neither The Body nor any sponsor is the publisher or speaker of the experts' material. Infomation provided by experts is general only and should not be used for diagnosing or treating a health problem or a disease, or relied upon as legal or other professional advice. This information is not a substitute for professional advice or care. If you have or suspect you may have a health or legal problem, you should consult your own health care provider or your attorney.