The family of a nurse who contracted Ebola while treating Thomas Eric Duncan at a Dallas hospital has identified her as 26-year-old Nina Pham, reported WFAA.

Pham, a health care worker at Texas Health Presbyterian Hospital who treated Thomas Eric Duncan after he was placed in isolation, tested positive for the virus Sunday.

Pham graduated from Texas Christian University’s nursing program in 2010. She is the first person to contract the disease while in the U.S.

The Centers for Disease Control and Prevention (CDC) is monitoring one person who may have had contact with Pham while she was potentially infectious. They are also investigating the process in which Duncan was isolated and treated to probe how Pham became infected.

Pham’s dog, a King Charles Spaniel, will not be killed, Dallas County Judge Clay Jenkins, told WFAA.

"When I met with her parents, they said, 'This dog is important to her, judge; Don't let anything happen to the dog," he said. "If that dog has to be ‘The Boy in the Plastic Bubble,’ we're going to take good care of that dog."

The dog has been moved to an undisclosed location and is under the care of Dallas Animal Services.

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