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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
Children under 18 can represent 50% or more of a crisis-affected population.
When water supplies are compromised during an emergency, responders often recommend household water treatment and safe storage (HWTS