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This evidence synthesis identifies, synthesizes and evaluates existing evidence of the impacts of water, sanitation, and hygiene (WA
This report is based on a desk-based review of secondary data, comprising published material as well as grey literature, supplemente
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.