Much has been written and calculated about the transmission risk HIV negative folks face with positive, negative or indeterminate partners. But what if you know you’re positive and worry about infecting a negative partner? With the help of our very own sexpert, Perry N. Halkitis, PhD, POZ combed through the University of California San Francisco’s online vault of the latest research to chart the odds of infection in the absence of protection. Although some of these numbers seem low, they don’t guarantee condom-free Eden. Many factors, including uncontrolled viral load, the presence of others exually transmitted infections and rough sex, can increase the likelihood of transmitting HIV. Feeling lucky?

 If you’re positive, not using condoms and you are the…  Risk of your partner being infected:
 Receptive partner of gay anal sex  1 in 1,250
 Insertive partner of gay anal sex  1 in 122
 Receptive partner of straight vaginal sex  1 in 1,000,000
 Insertive partner of straight vaginal sex  1 in 111,111
 Receiver of penile oral sex  1 in 1,250
 Performer of penile oral sex  Negligible
 Receiver of vaginal oral sex  Negligible
Performer of vaginal oral sex  Negligible