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Background. Diarrhoeal diseases are a major contributor to morbidity and mortality in humanitarian crises.
Cholera remains a significant threat to global public health with an estimated 100,000 deaths per year.
Water, sanitation, and hygiene (WASH) interventions are amongst the most crucial in humanitarian crises, although the impact of the
Children under 18 can represent 50% or more of a crisis-affected population.
In July 2007, a study by the Centre for Environmental Health Engineering, at the University of Surrey, assessed a modified method of