A clinical drug trial is now under way at a major health centre in Liberia's capital to determine if a medication already used to treat other viruses could help those suffering from Ebola. The drug called brincidofovir is being tested in patients. Ebola, which has no licensed treatment or cure, has killed more than 8,153 people in West Africa over the past year. Liberia has seen the highest fatality rate with 3,471 deaths, followed by Sierra Leone and Guinea.