Former US President George HW Bush has returned to his home in Texas after spending nearly two months in a Houston hospital.
He was released from hospital on Monday after being treated for a bronchitis-related cough and spent a week in intensive care last month because physicians were having difficulty controlling a fever that developed after treating the cough.
"I am deeply grateful for the wonderful doctors and nurses at Methodist who took such good care of me," said the 88-year-old former president.
Bush expressed his gratitude to well wishers and "fellow Americans" in a statement released by his spokesman.
"Your prayers and good wishes helped more than you know, and as I head home my only concern is that I will not be able to thank each of you for your kind words."
His condition had been improving since December 29 when he was moved to a regular hospital room, and underwent physical therapy to rebuild his strength.
"Mr Bush has improved to the point that he will not need any special medication when he goes home, but he will continue physical therapy," said Amy Mynderse, the doctor in charge of Bush's care.
The forty-first US president and former director of the Central Intelligence Agency also suffers from Parkinson's disease that has confined him to a motorised wheelchair in recent years.