while working in liberia is fighting for his life at the university of nebraska medical center this week . the money will be used by the u.s. centers for disease control and prevention 's ebola response effort in guinea , liberia and sierra leone and elsewhere in the world where ebola is a threat , the foundation said tuesday . aylward said that the 70 percent death rate was the cost of the evacuation flight from liberia to omaha alone cost $ 150,000 , not including the 40 - person medical team that accompanied him on the flight , according to the johannesburg ( ap ) — international aid organization doctors without borders said that 16 of its staff members have been infected with ebola and nine of them have died . hearing of the ebola crisis unfolding in this place where he was so warmly welcomed , he was compelled to return in order to report geneva ( ap ) — a world health organization official says the death rate in the current ebola outbreak has increased to 70 percent . who assistant director - general dr. bruce aylward gave the figure during a news conference tuesday . new york ( ap ) — facebook ceo mark zuckerberg and his wife , priscilla chan , are donating $ 25 million to the cdc foundation to help address the ebola epidemic . speaking at a press conference in johannesburg tuesday , the head of doctors without borders in south africa sharon ekambaram said medical workers have received inadequate assistance from the international community . zuckerberg and chan are making the dallas ( ap ) — they drew his blood , put tubes down his throat and wiped up his diarrhea .