I worked for four years in an isolation ward. At an ebola level of disease everything that comes in contact with the patient will have to be disposable. And a special effort will have to be made to burn whatever comes out of the room. So if they can make a disposable robot that they don’t mind destroying after treating one patient, I guess they would consider using a robot.
Truly... did you ever actually deal with an ebola case?
Do they throw out entire gurneys, etc.?
And you have forgotten about the option of a disposable skin for the robot... the underlying structure does NOT need to be destroyed. Watch your limiting assumptions.