Mr. Spencer was the last known person in America to have tested positive for the EVD.
He was treated at a specialist unit, where he was given an experimental drug and blood plasma donated by the recovered US Ebola patient.

http://www.leaknigerianews.com/2014/11/usa-declared-free-of-ebola-as-new-york.html

May be true but the ebola challenge is still on: Travel overseas to ebola hotzones, catch the virus and return home for treatment. Survivors get talked about and recognized as heroes for a week. They even get handshakes from the president.