The Global Programme to Eliminate Lymphatic Filariasis: health impact during its first 8 years (2000-2007).

During its first 8 years, the Global Programme to Eliminate Lymphatic Filariasis provided more than 1900 million treatments with antifilarial drugs (albendazole, ivermectin and diethylcarbamazine) to at least 570 million people in 48 countries with endemic lymphatic filariasis (LF). As a result of this impressive global effort and an unprecedented public-private partnership, 8 years of mass drug administration (MDA) have prevented the spread of filarial infection to an estimated 6.6 million newborns, stopped the progression to clinical morbidity in 9.5 million individuals already infected with the parasites that cause LF, and drastically reduced the burden of several co-infections. The resulting health benefits of the MDA, in terms of reduced morbidity and disability-adjusted life-years, are thus enormous. The next step should be an analysis of the Global Programme's economic impact from its first 8 years of MDA.