A U.S. health-care worker exposed to the Ebola virus in Sierra Leone arrived at a Nebraska hospital on Sunday for observation and potential treatment. The patient, who has not been identified, arrived at the Nebraska Medical Center's Biocontainment Unit mid-afternoon. "Even though the patient hasn't had a positive test for Ebola, all of our team members are taking the same precautions that were taken with the first three patients who did have Ebola," spokesman Taylor Wilson said. "It's out of an abundance of caution that this approach is being used."
