DALLAS — The hospital that treated the only Ebola patient to die in the United States will pay his relatives an undisclosed sum and create a charitable foundation in his name, the family’s attorney said Wednesday. The agreement heads off a lawsuit from relatives of Thomas Eric Duncan, who died Oct. 8 at Texas Health Presbyterian Hospital Dallas. Duncan, who arrived in North Texas from Liberia on Sept. 20, was initially sent away from the hospital’s emergency room with antibiotics, something …