Answers are grounded in this paper and cite their sources.
In the final article in a four-part PLoS Medicine series on water and sanitation, Sandy Cairncross and colleagues outline what needs to be done to make significant progress in providing more and better hygiene, sanitation, and water for all.
No takes yet. Share an insight, caveat, or question.
Cairncross et al. (2010) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: