The 51-year-old Sacra, who had been working at a hospital in Liberia, also received an experimental drug that doctors refuse to identify. And he has received supportive care including IV fluids. Smith says doctors wanted to treat Sacra with everything available to give him the best chance of recovering.

The doctors treating Sacra are talking with doctors at Emory University Hospital who have treated three other Ebola patients. They hope to develop to develop new treatment plans based on the experience.