In July 2012, the WHO (World Health Organization) published a study (just in time for the just then started Circumcision Debate in Germany) which recommended to perform circumcisions as a prevention against HIV/AIDS. This study supposedly promises a 60% protection against AIDS.
Circumcision proponents use this study for justifying even circumcisions on male toddlers and infants in Germany, Europe and Northern America. But the study only referred to Africa (Kenya, Uganda, and South Africa) and only to adults.
In fact, the study is scientifically vulnerable and has since been sharply criticized by experts.