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Urban areas in low- and middle-income countries are under chronic water stress, and multiple water source use (MWSU) is common.
Globally, cholera epidemics continue to challenge disease control.
After the 2015 earthquake in Nepal that killed approximately 9,000 people, the country faced an increased risk of cholera outbreaks
Household water treatment (HWTS) methods, such as boiling or chlorination, have long been recommended in emergencies.