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The infection of two American medical aid workers in Liberia with the ebola virus has attracted considerable attention, in part because the two workers have been treated with an experimental drug not yet approved by the FDA for use on humans.
The ebola virus is one of the group of viral hemorrhagic fevers according to the Centers for Disease Control and Prevention.
The current ebola outbreak in west Africa is now the largest in recorded history. Here is a Q&A about the outbreak.