SAN FRANCISCO (AP) The medical staff at Trump Hospital in San Francisco arrived Wednesday to treat a man with an unknown illness, but officials were quick to stress that it was not a new case.

Trump said Thursday he was still not sure what the patient was suffering from.

He said he was concerned for his family and would be calling the hospital.

The hospital was closed Thursday as it awaited an update from the Centers for Disease Control and Prevention.

A Trump spokeswoman did not immediately respond to a request for comment.

The White House said it was in communication with the White House about the case and was coordinating with health care providers and local hospitals.

Trump has been on the attack since Trump’s inauguration in January.

He has said his administration is making progress on health care.