Texas Ebola Patient, Eric Duncan Has Died

(CNN) -- Thomas Eric Duncan, a man with Ebola who traveled to the United States from Liberia, died Wednesday morning at Texas Health Presbyterian Hospital in Dallas, the hospital said.

He had been in critical condition after being diagnosed with the virus in mid-September. People who have had contact with the Liberian national are being monitored for symptoms.

It has just been a little over a week since Duncan began receiving treatment for the virus, and those days have spelled an "enormous test of our health system," said Dr. David Lakey, the commissioner of the Texas Department of State Health Services.

"For one family it has been far more personal," he said in a statement. "Today they lost a dear member of their family. They have our sincere condolences, and we are keeping them in our thoughts."