CDC chief : U.S. health system has been preparing since March for first U.S. Ebola case . The Centers for Disease Control and Prevention said Friday that it had prepared a plan to respond to the outbreak of Ebola, which is believed to have killed more than 11,000 people in West Africa so far. Can you catch Ebola on a plane ? 21 days is the longest known incubation period for Ebola , Frieden says .
CDC chief : U.S. health system has been preparing since March for first U.S. Ebola case . The Centers for Disease Control and Prevention said Friday that it had prepared a plan to respond to the outbreak of Ebola, which is believed to have killed more than 11,000 people in West Africa so far. 21 days is the longest known incubation period for Ebola , Frieden says .