Among other documentaries and fictional movies, Preve wrote and produced the documentary “Chagas, Un Mal Escondido” with the support of Doctors Without Borders. Preve has made a name for himself as a Chagas disease activist, raising awareness about the deadly disease in coordination with the Drugs for Neglected Diseases Initiative(link is external) (DNDi) organization. http://www.prevefilms.com/documentales(link is external)