A health worker, left, is seen on his way to collect a man suspected of suffering from the Ebola virus, in Freetown, Sierra Leone, Wednesday, Sept. 24, 2014. U.S. health officials Tuesday laid out worst-case and best-case scenarios for the Ebola epidemic in West Africa, warning that the number of infected people could explode to at least 1.4 million by mid-January — or peak well below that, if efforts to control the outbreak are ramped up.(AP Photo/ Michael Duff)
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