Male Circumcision

I did not know this:

male circumcision is one of the most cost-effective HIV prevention interventions. The most recent simulations suggest that scaling up medical male circumcision to 80 percent coverage in priority countries could avert approximately 22 percent HIV infections through 2025

from Chinkhumba, Godlonton, and Thornton (2014), who study the demand for male circumcision in Malawi.

Actual demand in Malawi is less than 10 percent --- far from the 80 percent stated above. Demand, however, is greater at lower prices, but information appears to be an important reason for actual take-up, too.