The Impact of Water, Sanitation and Hygiene Interventions to Control Cholera: A Systematic Review

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There is a distinct gap in knowledge of which WASH interventions are most appropriate to control cholera in emergencies.

Cholera remains a significant threat to global public health with an estimated 100,000 deaths per year. Water, sanitation and hygiene (WASH) interventions are frequently employed to control outbreaks though evidence regarding their effectiveness is often missing. This paper presents a systematic literature review of eighteen studies (of which only five reported a health outcome) investigating the function, use and impact of WASH interventions implemented to control cholera. There is a distinct gap in knowledge of which interventions are most appropriate for a given context and as such a clear need for more robust impact studies evaluating a wider array of WASH interventions, in order to ensure effective cholera control and the best use of limited resources.

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