The CDC has confirmed the first Ebola case diagnosed in the United States.

A North Texas hospital previously had announced it had a patient in strict isolation based on his or her symptoms and recent travel.

“Texas Health Presbyterian Hospital Dallas has admitted a patient into strict isolation to be evaluated for potential Ebola Virus Disease (EVD) based on the patient’s symptoms and recent travel history. The hospital is following all Centers for Disease Control and Texas Department of Heath recommendations to ensure the safety of patients, hospital staff, volunteers, physicians and visitors. The CDC anticipates preliminary results tomorrow.”

Dallas County Health and Human Services director Zachary Thompson told CBS DFW that the patient had traveled to western Africa. It is therefore quite likely that he was infected with the virus there.

Thompson also said the North Texas public should be aware and concerned about Ebola, stating, “With what we’ve seen in the media and how deadly the Ebola virus is, it is a concern.”

This marks the first Ebola virus disease have been diagnosed in the U.S., but not first time the virus in general has been here. At least three previously-known patients — diagnosed in Africa — have been treated in U.S. hospitals for the virus.

The virus is not spread via the air, making it far less contagious than the flu and less of a danger to air travelers. Instead, it is spread by contact with bodily fluids.

This story is developing…Andrew Freedman contributed to this report.