U.S. Missionary who contacted Ebola virus flown out of Liberia.

A second U.S. missionary who contracted Ebola in Liberia has arrived back in the United States. Nancy Writebol traveled on a specially outfitted plane that landed in the southeastern city of Atlanta on Tuesday. She will be treated at Emory University Hospital, alongside an American doctor who also contracted the deadly virus while treating patients in Liberia. Both received a dose of an experimental serum before leaving Liberia. On Monday, officials at a New York City hospital said a man suffering from a high fever and gastrointestinal problems arrived at the emergency room and was quickly isolated. They say the patient recently traveled to a West African country where Ebola has been reported, and is now undergoing tests to determine the cause of his illness. No other details about the man were given. Authorities in Nigeria Monday reported the country's second confirmed case of Ebola -- a doctor who treated the first patient who died July 25 in Lagos. Eight others are being monitored for the disease.