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Household members of diarrhea patients are at higher risk of developing diarrheal diseases (>100 times for cholera) than the gene
The devastating earthquake of 2005 severely damaged over 4000 water and sanitation schemes in northern Pakistan.
Batch water treatment consists of the intermittent use of settling tanks for water clarification, and is a common treatment practice
Recent investigations into the March 2003 outbreak of SARS in Hong Kong have concluded that environmental factors played an importan