Researchers have identified a new clinical trial that will enable the discovery of therapies with the potential to treat any future epidemic even if new virus strains emerge.The US and Liberian governments Friday launched a clinical trial to evaluate the safety and efficacy of an experimental Ebola drug on humans the US National Institute of Allergy and Infectious Disease (NIAID) said. Also read about the Ebola drug that can kill the virus even if it mutates.'Although ZMapp has been used to treat several Ebola-infected patients in recent months we cannot determine if the drug actually benefited those patients because it