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The Zimbabwean government and a number of organisations responded in various ways to the devastation done by Cyclone Idai, which occ
Background In October 2010, Haiti was struck by a large-scale cholera epidemic.
The devastating earthquake of 2005 severely damaged over 4000 water and sanitation schemes in northern Pakistan.
A simple method for filtering water to reduce the incidence of cholera was tested in a field trial in Matlab, Bangladesh, and proved