David Goldman / AP
Police officers guard an entrance to Emory University Hospital after an ambulance arrived transporting an American that was infected with the Ebola virus Saturday, Aug. 2, 2014, in Atlanta. A specially outfitted plane carrying Dr. Kent Brantly from West Africa arrived at a military base in Georgia. Brantly was taken to the Atlanta hospital. Another American with Ebola is expected to join him at the hospital in a few days.