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Globally, an estimated 2.5 billion people lack access to improved sanitation.
The Ebola virus disease (EVD) epidemic entered Liberia through Lofa County in February 2014 and spread to two heal
The international response to Haiti’s ongoing cholera outbreak has been multifaceted, including health education efforts by communit
Recent investigations into the March 2003 outbreak of SARS in Hong Kong have concluded that environmental factors played an importan