"This morning, the Vice President accompanied his son Beau Biden to Houston, Texas, where Beau is being evaluated to determine the cause of an episode of disorientation and weakness that he experienced while on vacation with his family last week," the White House said.
Beau Biden, who is Attorney General of Delaware, sought treatment for his symptoms at hospitals in Chicago and Philadelphia last week.
On Wednesday night, after feeling weak and disoriented following a long drive to Indiana for a family vacation, Biden was admitted to Northwestern University Hospital, said a statement issued by office of Delaware Attorney General.