Southern Africa: One infection will be avoided for every 5 to 15 men circumcised - study

In the high HIV prevalence countries of southern Africa, between five and fifteen men will need to be circumcised to prevent one HIV infection in the ten following years, at a cost of between $150 and $900 per infection prevented. These are the conclusions of an expert review of mathematical models of the impact of male circumcision, organised by UNAIDS, WHO and the South African Centre for Epidemiological Analysis, and published in the open access journal PLoS Medicine.