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In August 2015, an outbreak of cholera was reported in Tanzania.
Globally, an estimated 2.5 billion people lack access to improved sanitation.
Objective To investigate the concentration of residual chlorine in drinking water supplies in refugee camps, South Sudan, March–Apri
Mount Sinabung erupted in September 2013, causing the mass evacuation of more than 30,000 people.
There is currently limited public information available concerning methods for the selection of appropriate water trea