The 4 specialized biocontainment Units in the U.S. are:

There are four specialized biocontainment units in the United States: the University of Nebraska Medical Center in Omaha, Nebraska, where Mukpo and Sacra were treated; the U.S. Army Medical Research Institute of Infectious Diseases at Fort Detrick, Maryland; St. Patrick Hospital and Health Sciences Center of Missoula, Montana;^[78] and Emory University Hospital in Atlanta, Georgia, where Brantley, Writebol and the unnamed patient had gone after contracting Ebola.^[75]

  end partial quote from:

• Wikipedia:2014 United States Ebola virus outbreak