The aspect of interest is her being exceptionally well trained (TCU) and having a full four years experience prior to the encounter with patient ZERO.

DALLAS — A Dallas nurse diagnosed with the Ebola virus over the weekend is a former Texas Christian University student identified by a family member as 26-year-old Nina Pham.
The family reached out to News 8 Monday morning and shared an image of the nurse who grew up in Fort Worth.

A health care worker at Texas Health Presbyterian Hospital Dallas, Pham became infected while treating Thomas Eric Duncan, who died from the virus days before the nurse’s diagnosis.
Pham graduated from TCU’s nursing program in 2010 and is the first person to contract the disease while in the Unites States.
She was diagnosed with the virus after she reported a low-grade fever.
One person was identified to have been around Pham while she was potentially infectious. That person is under daily monitoring by the Centers for Disease Control and Prevention and has showed no symptoms of the virus.
“The existence of the first case of Ebola spread in the U.S. changes some things and it doesn’t change other things,” said Tom Frieden, director of the CDC, during a news conference Monday. “It doesn’t change the fact that we know how Ebola spreads. It doesn’t change the fact that it’s possible to take care of Ebola safely. But it does change substantially how we approach it.”
Frieden said change is necessary because “even a single infection is unacceptable.”  (read more)