A top health expert warns that the world needs to deal with he cells the "fist Ebola epidemic the world has known" Tom frienden, director of the U.S. Centers for Disease control spoke to reporters at the CDC headquarters in Atlanta,Gerogia. He warned that the Ebola. Outbreak in West Africa could spread widely. He said a huge global effort is needed to contain the disease. Dr.Frieden just returned from a visit to the most affect countries; Sierra Leone,Guince and Liboria. He said Ebola cases continue to increase the number of cases is more than 5,000. Dr. Frieden warned that there is a window of opportunity to stop Ebola. But he added that the window is closing. The CDC chief said the Ebola virus is spreading in two ways from patient to caregivex and though unsafe treatment of the dead. Dr. Frienden warned that each day's delay in dealing with the Ebola spread makes it more difficult to stop. The CDC director said resources technical experts and a worldwide, organized and unifed plan are need. He said Ebola is not only an African problem, but a wold problem. U.S. health officials have announeed an agreement with a California based drugmake, Mapp, Biopharmaceuticals. The deal calls for the company to speed development of the experimental Enola medicine ZMapp. ZMapp has not been tested on humans. But, two American medical missionaries Who had Ebola were treated with the drug and recovered.