Health officials trying to get ahead of Ebola

Texas officials asked the remaining 75 health care workers who had contact with Thomas Eric Duncan, the first the first patient diagnosed with Ebola in the U.S., to sign a legal documents agreeing not to go to any public places or use mass transit.

They also released a statement challenging claims made by those involved in the crisis, reports CBS News correspondent Anna Werner.

Regarding the transfer of Nina Pham, the first Dallas nurse infected with the disease, hospital officials said with so many ICU healthcare workers sidelined because of possible exposure, it was in the best interest of the hospital and Pham to move her.

Pham seemed to have her sense of humor, despite her battle with the deadly Ebola virus.

Co-workers cheered and waved signs of support as her ambulance drove away.

Pham, completely covered in a hazmat suit, boarded a plane headed for the National Institutes of Health Clinical Center in Maryland. She arrived late Thursday night.

Her co-worker, 29-year-old Amber Vinson, the second nurse diagnosed with Ebola, made a similar trip on Wednesday. She was flown to Emory University Hospital in Atlanta.

Her family released a statement thanking everyone for their support.

"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."

The Centers for Disease Control and Prevention (CDC) says Vinson may have been ill days before she was diagnosed.

The agency is expanding its outreach to passengers who were on the flight Vinson took from Dallas to Cleveland on Friday, October 10.

Frontier Airlines is notifying passengers on seven flights, who either flew with amber Vinson, or were on a later flight using the same plane. The airline says it is reaching out to 750 passengers in all.

"I saw a chaotic scene, it wasn't organized and it wasn't safe," Texas Health Presbyterian Hospital nurse Brianna Aguirre said.

She said nurses were never trained properly to identify and treat Ebola.

She claimed the hospital lacked the proper protective gear and she saw medical waste left in open containers inside and outside treatment rooms.

"The thing that upsets me the most is how my hospital, who I had so much respect for, promised to make our safety their priority and they promised to be transparent and they failed on their promises," Aguirre said.

The hospital released a statement responding to some of the claims made by Aguirre and others.

"Many of the comments we have seen or heard in the media are only loosely based on fact, but are often out-of-context and sensationalized. Others are completely inaccurate."