It involved about three thousand four hundred uncircumcised Ugandan men between the ages of fifteen and forty-nine.None had HIV, genital herpes or HPV at the start of the study.

• 这个试验大约有3400名乌干达人做了切除术，年龄在15至49岁之间，这些人在研究开始都没有爱滋病，生殖器疱症或者乳头病。