Recently, two large clinical trials in Kenya and Uganda that examined the role of circumcision in men to prevent the spread of HIV were halted on the grounds that not offering circumcision to men taking part in the trial would be unethical. The trials involved nearly 3,000 heterosexual men in Kenya and nearly 5,000 men in Uganda, none of whom were infected with HIV prior to starting the trial. In the Kenayn trial, men who were circumcised had a 53% relative risk reduction…






