Ebola Mutation: Lack Of Virus Samples In US Hampers Efforts To Track Its Changes

Samples of Ebola are in short supply for U.S. scientists who require a fresh, steady stock of the virus to track its changes and to plan ahead for new drugs and vaccines. Much like the flu virus, Ebola mutates, however slightly, as it spreads, and keeping up with those changes is key to stopping new infections and heading off future outbreaks, according to Reuters.