A health care worker at a Dallas hospital has tested positive for the Ebola virus, that according to the Texas Department of State Health Services.

The worker at Texas Health Presbyterian Hospital, who has not been identified, provided care for Thomas Eric Duncan, the first person diagnosed with Ebola in the United States, who died last week.

If the preliminary diagnosis is confirmed, it would be the first known case of the disease being contracted or transmitted in the U.S.

The Center for Disease Control continues to stress that the virus cannot be contracted unless one comes into contact with the bodily fluids of an Ebola victim.

'You cannot contract it by walking by people on the streets and there is nothing about this case that changes that basic premise of science.'

A statement from the hospital said the worker was in full protective gear when they provided care to Duncan during his second visit to the hospital.

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