The patient, now was kept in an isolated place in an Indiana hospital after being diagnosed with the MERS virus, Xinhua reported citing the Centers for Disease Control and Prevention (CDC) said.
He is "in stable condition" and "is being well cared for, CDC said.
The patient began to experience respiratory symptoms, including shortness of breath, coughing, and fever April 27, and went to see doctors the next day and was then admitted to hospital.
The infected person returned from the Middle East last month.
The traveler was confirmed infection with the MERS virus Friday, the CDC said.