Former US President George H W Bush is being treated for bronchitis in hospital in Houston, Texas.
Mr Bush, 88, has been in hospital for six days with a "lingering cough", a spokesman told CNN.
The former president is expected to be discharged this weekend.
Mr Bush, a World War II veteran, was president from 1989 - 1993. Before that, he was vice president for two terms under Ronald Reagan.
The Houston Chronicle newspaper reported he was admitted to Houston Methodist hospital on Friday, after several visits in recent weeks.