The Centers for Disease Control and Prevention (CDC) wants to speak with passengers on a second Frontier Airlines flight, after a Dallas-nurse was diagnosed with Ebola just a few days after she flew home from Cleveland.

The nurse, Amber Vinson, called the CDC before her trip to Cleveland after she developed a low-grade fever, but the agency approved her travel. 

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After reports that she might have shown symptoms on her flight back to Dallas, the CDC asked those passengers to contact the agency. But in a release Thursday night, the CDC expanded that notification to include passengers on Vinson’s flight to Cleveland. The agency said that it wants to interview passengers and that "individuals who are determined to be at any potential risk will be actively monitored."

Ebola is contagious once an infected person starts exhibiting symptoms, so the CDC wants to keep tabs on anyone who could have come into contact with Vinson when those symptoms began. She traveled to Cleveland on Oct. 10 and returned on Oct. 13, the day before she reported her symptoms to the CDC.

Vison’s family released a statement Thursday night that said she is “stable” and followed protocol throughout the incident.

"Amber is a respected professional and has always had a strong passion for nursing," the family said in the statement. "She followed all of the protocols necessary when treating a patient in Dallas, and right now, she's trusting in her doctors and nurses as she is now the patient."