A second healthcare worker at the Dallas hospital where Ebola patient Thomas Duncan was treated last week has tested positive for the virus, Texas health officials say.

The Texas Department of State Health Services confirmed that the worker had tested positive in a statement early Wednesday. It did not specify what position the worker held at Texas Health Presbyterian Hospital, though officials did say that the person was among those who provided care for Duncan, who died from the virus Oct. 8.

The statement said that the worker had reported a fever Tuesday and had been placed in isolation. Preliminary Ebola tests were run at the state public health lab in Austin and results came back at approximately midnight Wednesday. A separate test will be done at the Centers for Disease Control and Prevention in Atlanta.

On Sunday, officials confirmed that 26-year-old nurse Nina Pham had tested positive for the virus. More than 70 people who may have had contact with Duncan at the hospital were being monitored. Read more