US health officials have confirmed that a second health care worker in Texas has tested positive for Ebola viral disease.
The Texas Department of State Health Services said the victim provided treatment for Thomas Duncan, the first patient to be diagnosed with Ebola outside Africa.
In a statement, the department said on Wednesday in Texas that the employee reported a fever on Tuesday and was immediately isolated.
It said those who have had recent contact with the worker had been identified and were being monitored.
It said Duncan, a 42-year-old Liberian man who contracted Ebola while in Liberia, died a week ago at the Texas Health Presbyterian Hospital in Dallas.
The department said he had not shown symptom of the disease until a few days after he arrived in Texas on September 20.