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Currently, the emergence of a novel human coronavirus, SARS-CoV-2, has become a global health concern causing severe respiratory tra
Introduction A cholera epidemic began in Haiti over 8 years ago, prompting numerous, largely quantitative research studies.
Background In October 2010, Haiti was struck by a large-scale cholera epidemic.
Most households in the districts of Sri Lanka affected by the tsunami possessed drinking water wells, and these wells were contamina