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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
Cholera has been eliminated as a public health problem in high-income countries that have implemented sanitation system separating t
The Ebola virus disease (EVD) epidemic entered Liberia through Lofa County in February 2014 and spread to two heal
Water, sanitation, and hygiene interventions can interrupt diarrhoeal disease transmission and reduce the burden of morbidity and mo