The reason is just the natural way female and male bodies function and interact. Cold sores contain high concentrations of the virus and hence increase the chances of transmission significantly. Using condoms is very important. Not to say it can't occur, but it doesn't seem a realistic concern. 4% chance transmission from female to male;
Very low but not zero Further, whatever transmission chance exists is further reduced by your partner's antiviral therapy. Not to say it can't occur, but it doesn't seem a realistic concern. 03/01/2018 · according to studies done by valtrex, these are the rates of transmission per year of regular sex: I've only had one outbreak, as far as i know, and the only symptom that i can recall was an incredibly bad pain in my lower back, which my doctor seemed to think did not suggest herpes. Transmission is easier from a man to a woman. No risk if her hsv 2 infection is genital. Specifically receiving oral, no vaginal sex.