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Introduction A cholera epidemic began in Haiti over 8 years ago, prompting numerous, largely quantitative research studies.
Household water treatment with chlorine can improve the microbiological quality of household water and reduce diarrhea
Water, sanitation, and hygiene interventions can interrupt diarrhoeal disease transmission and reduce the burden of morbidity and mo
Recent investigations into the March 2003 outbreak of SARS in Hong Kong have concluded that environmental factors played an importan