The ex-leader, 88, was taken to a hospital in Houston, Texas last month (Nov12) for treatment to a bad cough following a bout of bronchitis, and he subsequently developed a high temperature.
He was transferred to an intensive care unit last week (23Dec12), with his spokesman revealing the former politician suffered ""a series of setbacks including a persistent fever"".
However, Bush, Snr. was discharged from the unit on Saturday (29Dec12) after his health improved.
A statement from officials reads, ""President Bush's condition has improved, so he has been moved today from the intensive care unit to a regular patient room at The Methodist Hospital to continue his recovery.""