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The Ebola epidemic

A health worker wearing a protective suit assists patients at the Ebola treatment center run by the French Red Cross in Macenta, Guinea, on Friday, November 21. Health officials say the Ebola outbreak in West Africa is the deadliest ever. More than 5,400 people have died there, <a href='http://www.who.int/csr/disease/ebola/situation-reports/en/' target='_blank'>according to the World Health Organization.</a>

A health worker wearing a protective suit assists patients at the Ebola treatment center run by the French Red Cross in Macenta, Guinea, on Friday, November 21. Health officials say the Ebola outbreak in West Africa is the deadliest ever. More than 5,400 people have died there, according to the World Health Organization.