| http://www.w3.org/ns/prov#value | - The World Health Organisation says this outbreak has killed more than 670 people in Liberia, Guinea and Sierra Leone since it began this year.There is no known cure for Ebola, which begins with symptoms including fever and sore throat and escalates to vomiting, diarrhea and internal and external bleeding.Health workers are at serious risk of contracting the disease, which spreads through contact w
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