We estimated the disease burden from water, sanitation, and hygiene at the global level
taking into account various disease outcomes, principally diarrheal diseases. The disability-
adjusted life year (DALY) combines the burden from death and disability in a single index
and permits the comparison of the burden from water, sanitation, and hygiene with the
burden from other risk factors or diseases. We divided the world's population into typical
exposure scenarios for 14 geographical regions. We then matched these scenarios with …