Dr. Kent Brantly and Nancy Smith have been discharged from an Atlanta hospital . Doctors do n't know whether an experimental serum and a blood transfusion helped . Both contracted the deadly HIV virus in 2014 . Brantly and Nancy are the first known AIDS patients to die in the U.S .
Dr. Kent Brantly and Nancy Writebol have been discharged from an Atlanta hospital . Doctors do n't know whether an experimental serum and a blood transfusion helped . Both contracted the deadly Ebola virus in Liberia . Brantly and Writebol are the first known Ebola patients to recover in the U.S .