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This evidence synthesis identifies, synthesizes and evaluates existing evidence of the impacts of water, sanitation, and hygiene (WA
The World Health Organization (WHO) estimates that improving water, sanitation and hygiene could prevent at least 9.1% of the global
When water supplies are compromised during an emergency, responders often recommend household water treatment and safe storage (HWTS
Children under 18 can represent 50% or more of a crisis-affected population.