Dallas hospital looks for cause of nurse's Ebola diagnosis

DALLAS -- Dallas hospital officials are struggling to explain how Ebola was transmitted to a 26-year-old nurse who treated the Liberian man that died from the disease.

Records obtained by the Associated Press say about 70 staffers were involved in the care for that patient.

The Dallas Ebola patient identified by family members as Nina Pham is awake and talking to loved ones from her isolated hospital room using Facetime.

"She is a person that's dealing with this with a heroic and graceful spirit, she's incredibly concerned. We're all incredibly concerned." Dallas County Judge Clay Jenkins.

A full investigation is underway into how, despite wearing full protective gear, she contracted the virus while treating the Ebola patient who died here last week and if she's the only one.

"If this one individual was infected, and we don't know how within the isolation unit, then it is possible that other individuals could have been infected as well," Center for Disease Control Director Dr. Thomas Frieden said.

Officials say that other than health care workers, there is no threat that anyone else was infected. One person believed to have had contact with Pham after she started showing symptoms Friday is in isolation as a precaution.

Pham's dog is also being monitored and her home is being decontaminated.

The CDC says changes are being made and more training is being done at the hospital. but some experts question if it's enough.

"I'm concerned about the current approach to treating patients with Ebola and the idea that any hospital can do this safely. It takes a lot of work to use this protective gear properly," ABC News Chief Health and Medical Editor Dr. Richard Besser said.

For the first time Monday we heard from the American journalist being treated for Ebola in Nebraska.

Ashoka Mukpo tweeted today that he feels like he's on the road to good health.