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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
Water chlorination is widely used in emergency responses to reduce diarrheal diseases, although communities with no prior exposure t
Protracted conflicts in the Middle East and North Africa (MENA) region have left tens of millions of people in need of humanitarian
Recent investigations into the March 2003 outbreak of SARS in Hong Kong have concluded that environmental factors played an importan