As I understand it, the receiving party is at much higher risk of being infected. I agree with the earlier poster that guy on guy stuff is far more likely to be the cause of the infections.
Phil Robertson might disagree. The issue is swapping blood, and fluids. Certainly, the receiving party is at much greater risk, but still. I suspect STDs are gonna be a problem for ISIS veterans far into the future.
A little off topic but does anyone know how Magic Johnson became infected?