Ex-President George H.W. Bush in Texas hospital

The hospital and Bush's spokesman in Houston, Jim McGrath, described Bush as in stable condition and said they expected the former president to be released by the weekend. He's been under hospital care for nearly a week.

"If you asked him today, he would tell you he feels good enough to get out this afternoon," McGrath said Thursday. "But the doctors have a different view. He's 88, and they're being extra careful, and understandably so."

The former president's illness was described as not life-threatening.

"This was never a serious or life-threatening situation," said Dr. Amy Mynderse, an internal medicine specialist in charge of Bush's care. "We simply wanted to prevent the progression of the disease into pneumonia, which is possible in any patient at this age."

Bush was treated with antibiotics and steroids, she said in a statement issued by the hospital.

McGrath said this is Bush's second extended hospital stay this month.

"This cough has kind of been building on itself since roughly the beginning of the month," he said. "He was hospitalized earlier in the month for a little over a week. They thought they had successfully contained the bronchial issues but they hadn't.