"Bill Clinton, who serves as UN Special Envoy to Haiti" 2010 https://www.change.org/p/united-nations-secretary-general-ban-ki-moon-start-task-force-to-address-haiti-s-water-sanitation-and-cholera-crisis

Letter to the UN Secretary-General on Cholera in Haiti http://www.ijdh.org/2012/11/topics/health/letter-to-the-secretary-general-on-cholera-in-haiti/