Featured Research

from universities, journals, and other organizations

HIV Infection From Receptive Oral Sex Is A Rare Event, UCSF Study Confirms

Date:
August 15, 2001
Source:
University Of California - San Francisco
Summary:
A study by researchers from UCSF's Center for AIDS Prevention Studies (CAPS) found the probability of HIV infection through unprotected receptive oral sex with a man to be statistically estimated as zero.

A study by researchers from UCSF's Center for AIDS Prevention Studies (CAPS) found the probability of HIV infection through unprotected receptive oral sex with a man to be statistically estimated as zero.

Related Articles


"Our study looked at exclusive receptive oral intercourse with a male partner, and we found that the probability of acquiring HIV through that specific sexual activity is very, very low. Given that the results are based on a relatively small sample, we can not rule out the possibility that the probability of infection is indeed greater than zero," said study lead author Kimberly Page Shafer, PhD, MPH, assistant professor of medicine at UCSF's CAPS.

The study is ongoing and the findings will be amended by the researchers with greater numbers.

"While our study is the first to attempt to systematically define the risk, case reports exist of infections acquired through oral contact. I want to emphasize that, while rare, acquiring HIV infection orally is possible and that many other sexually transmitted diseases (STDs) such as gonorrhea, chlamydia, and syphilis are transmitted orally," added Shafer.

The study, presented today (August 14) at the Second National Prevention Conference in Atlanta, enrolled 198 participants from anonymous testing and counseling sites in San Francisco. The participants, 98 percent male and 100 percent identified as gay or bisexual, reported no anal or vaginal sex and no injection drug use in the six months prior to entering the study. The participants reported a median of two receptive oral intercourse partners and 98 percent reported unprotected receptive oral intercourse.

Twenty percent of the participants reported receptive oral intercourse with an HIV positive partner. Of that group, 89 percent did not use a condom and 40 percent swallowed ejaculate.

The participants were screened for HIV infection and also for recent HIV infection using both the standard test for HIV and a test for HIV that is "detuned" to detect only those HIV infections that have occurred within the six months prior to taking the test.

Out of the 198 participants, only one HIV infection was reported, and that infection had not been recently acquired and could not be attributed to the period of exclusive oral receptive intercourse. No recently acquired HIV infections were reported by any of the other participants in the study. Statistically, the study yielded a zero probability of acquiring HIV orally.

The study's co-authors are Caroline Shiboski, DDS, MPH, PhD, assistant clinical professor in UCSF's School of Dentistry's stomatology department; James W. Dilley, MD, executive director of UCSF's AIDS Health Project; Joyce Balls, project coordinator at UCSF CAPS; Willi McFarland, MD, PhD, San Francisco DPH HIV Seroepidemiology Unit and UCSF Center for AIDS Prevention Studies; Deborah Greenspan, DSc, professor of clinical and oral medicine in UCSF's School of Dentistry's stomatology department; Stephen Shiboski PhD, and Dennis Osmond, PhD, both associate adjunct professors in UCSF's Department of Epidemiology and Biostatistics.

The study is funded by the National Institute of Dental and Craniofacial Research.


Story Source:

The above story is based on materials provided by University Of California - San Francisco. Note: Materials may be edited for content and length.


Cite This Page:

University Of California - San Francisco. "HIV Infection From Receptive Oral Sex Is A Rare Event, UCSF Study Confirms." ScienceDaily. ScienceDaily, 15 August 2001. <www.sciencedaily.com/releases/2001/08/010815082420.htm>.
University Of California - San Francisco. (2001, August 15). HIV Infection From Receptive Oral Sex Is A Rare Event, UCSF Study Confirms. ScienceDaily. Retrieved December 21, 2014 from www.sciencedaily.com/releases/2001/08/010815082420.htm
University Of California - San Francisco. "HIV Infection From Receptive Oral Sex Is A Rare Event, UCSF Study Confirms." ScienceDaily. www.sciencedaily.com/releases/2001/08/010815082420.htm (accessed December 21, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Sunday, December 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Best Tips to Curb Holiday Carbs

The Best Tips to Curb Holiday Carbs

Buzz60 (Dec. 19, 2014) It's hard to resist those delicious but fattening carbs we all crave during the winter months, but there are some ways to stay satisfied without consuming the extra calories. Vanessa Freeman (@VanessaFreeTV) has the details. Video provided by Buzz60
Powered by NewsLook.com
Sierra Leone Bikers Spread the Message to Fight Ebola

Sierra Leone Bikers Spread the Message to Fight Ebola

AFP (Dec. 19, 2014) More than 100 motorcyclists hit the road to spread awareness messages about Ebola. Nearly 7,000 people have now died from the virus, almost all of them in west Africa, according to the World Health Organization. Video provided by AFP
Powered by NewsLook.com
Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
The Best Protein-Filled Foods to Energize You for the New Year

The Best Protein-Filled Foods to Energize You for the New Year

Buzz60 (Dec. 19, 2014) The new year is coming and nothing will energize you more for 2015 than protein-filled foods. Fitness and nutrition expert John Basedow (@JohnBasedow) gives his favorite high protein foods that will help you build muscle, lose fat and have endless energy. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins