According to report on chron.com, 88-year-old Bush has bronchitis, but his condition is not considered life threatening, said his chief of staff, Jean Becker.
“President Bush is in the hospital,” Becker said. “We have kept this quiet out of respect for him.”
Bush has been in and out of Methodist Hospital for a few weeks, and was most recently admitted the day after Thanksgiving, she said. He was visited there Sunday by his son, former President George W. Bush and his wife, Laura.
“His big problem is a chronic cough, he can’t get rid of so he’s back at Methodist,” Becker said. “This is not a life-threatening illness.”
She said there were some earlier concerns that the cough would turn into pneumonia, but it has not.
Bush is expected to be released this weekend, she said.
Bush, who was vice president for two terms under President Ronald Reagan, served as president from 1989-1993.