DALLAS—Health officials' handling of the first Ebola patient diagnosed in the United States continued to raise questions Friday, after the hospital that is treating the patient and that mistakenly sent him home when he first came to its emergency room acknowledged that both the nurses and the doctors in that initial visit had access to the fact that he had arrived from Liberia. For reasons that remain unclear, nurses and doctors failed to act on that information, and released the patient under the erroneous belief that he had a low-grade fever from a viral infection, allowing him to put others...