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Recent systematic reviews have highlighted a paucity of rigorous evidence to guide water, sanitation and hygiene (WASH) intervention
Cholera remains a significant threat to global public health with an estimated 100,000 deaths per year.
Mount Sinabung erupted in September 2013, causing the mass evacuation of more than 30,000 people.
Point-of-use water treatment (PoUWT), such as boiling or chlorine disinfection, has long been recommended in emergencies.