It had been thought that the breaks in the skin were the reason for higher HIV rates, but a study last year found that treatment of herpes with drugs did not reduce the HIV risk.

人们过去以过去一直认为皮肤上的伤口是导致艾滋病毒感染率高的原因，但去年的一项研究发现，药物治疗疱疹并没有减少感染艾滋病毒的危险。