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Associated Press
Edward Kelley, director of WHO’s service delivery and safety, speaks during a press conference at the European headquarters of the United Nations in Geneva, Switzerland, Friday, Oct. 31, 2014. The U.N. health agency WHO is updating its guidelines for health workers dealing with the deadly Ebola virus, recommending tougher measures such as doubling up on gloves and making sure the mouth, nose and eyes are better protected from contaminated droplets and fluids. (AP Photo/Keystone, Salvatore Di Nolfi)

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