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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
After the earthquake in Haiti in 2010, thousands of agencies, organizations, and individual people tried to find ways to help the pe
Following the Asian tsunami of 26 December 2004, the vital domestic fresh-water wells in the coastal zone were either scoured out of
Batch water treatment consists of the intermittent use of settling tanks for water clarification, and is a common treatment practice