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Currently, the emergence of a novel human coronavirus, SARS-CoV-2, has become a global health concern causing severe respiratory tra
The Ebola virus disease (EVD) epidemic entered Liberia through Lofa County in February 2014 and spread to two heal
Most households in the districts of Sri Lanka affected by the tsunami possessed drinking water wells, and these wells were contamina
Recent investigations into the March 2003 outbreak of SARS in Hong Kong have concluded that environmental factors played an importan