Finally, anti-bodies to three major Ebola viruses have now been developed. Researchers at Vanderbilt University Medical Center are a step closer to developing a broadly effective antibody treatment against these viruses that cause the lethal disease in humans. Researchers found that the isolation of two potent monoclonal antibodies from human survivors of Ebola virus disease in cell culture studies efficiently neutralized the Zaire, Sudan and Bundibugyo Ebola viruses.