NEW : It 's a crisis unlike any other during previous Ebola outbreaks , according to WHO . The State Department describes the Ebola outbreak as a `` dire emergency '' Patient is a Sierra Leone citizen who got Ebola in U.S. , WHO says . State Department says an air ambulance will transport an Ebola patient to Atlanta . The patient will be brought to a hospital isolation unit , Emory says .
NEW : The State Department describes the Ebola outbreak as a `` dire emergency '' Patient is a Sierra Leone citizen who got Ebola in U.S. , WHO says . State Department says an air ambulance will transport an Ebola patient to Atlanta . The patient will be brought to a hospital isolation unit , Emory says .