ATLANTA — A roomful of reporters and TV cameras tracked every word that Emory physicians said at a Friday news conference preceding the arrival of two Americans stricken with Ebola. After their high-profile trip to Atlanta, the two patients' treatment in a special isolation unit at Emory University Hospital has brought unprecedented media attention to the medical facility. The net effect for Emory is an immediate increase in prestige and visibility, health care experts told Georgia Health News on Wednesday.