She did quarantine and was cleared.
“Hickox, 33, a volunteer nurse with Doctors Without Borders, had been stopped at Newark Liberty International Airport when she returned to the United States on October 24, 2014. She was quarantined in a tent outside a New Jersey hospital for three days, even though she had no symptoms of Ebola. New Jersey agreed to let her go home to Fort Kent, Maine, a small logging town near the Canadian border.”
She had a fever when she landed in Newark. She tested negative for Ebola, but it can take time for the virus to be detected. She was supposed to quarantine for 21 days. After three days at a NJ hospital, she was sent to Maine where she was supposed to finish her quarantine at her home. But, when she got home, she refused to quarantine or stay away from other people.