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Introduction: The major aim of hand washing promotion programs is to persuade people to change their behaviour to reduce high-risk h
Household water treatment with chlorine can improve the microbiological quality of household water and reduce diarrhea
A simple method for filtering water to reduce the incidence of cholera was tested in a field trial in Matlab, Bangladesh, and proved
Recent investigations into the March 2003 outbreak of SARS in Hong Kong have concluded that environmental factors played an importan