It has long been known that contracting HIV through oral sex is rare. Klara Hasselrot of Stockholm’s Karolinska Institutet recently wrapped up a study–detailed in a forthcoming paper in the international AIDS journal AIDS–that might shed some light on why this is. It provides the first-ever evidence that humans can develop resistance to HIV in their saliva. . . . Obviously it’s a bad idea to go around willy-nilly having unprotected oral sex with HIV-infected . . .
Obviously this is not medical advice, just news. I wonder if it will give any insight for scientists working on a cure or vaccine.