<qa>  What is the casefatality rate for EVD?The ongoing epidemic of EVD has ravaged parts of West Africa, with initial cases reported in December 2013. There is no licensed specific therapy for the disease, which has a case-fatality rate of approximately 50-70. Although anecdotal clinical data, recent studies in animal models, and in vitro screening suggest that treatment of EVD patients with anti-viral agents, immune modifying agents, andor convalescent blood products may be effective, they have not been evaluated in clinical trials. This multi-arm clinical trial will evaluate the efficacy and safety of multiple regimens, both as mono-therapy and combination therapy. Provision of these regimens, if found effective and safe, would have a major impact on the current and future epidemics by providing effective treatment options. 