Former President George H.W. Bush is still in the intensive care unit (ICU) of the Houston-area Methodist Hospital, but a Bush family spokesperson today announced that the former president’s condition is improving. The spokesperson expressed hope that Bush will make it through the current illness. From the statement:

“President Bush remains in the intensive care unit at Methodist Hospital, where he continues to improve. The President is alert and, as always, in good spirits – and his exchanges with doctors and nurses now include singing. The Bushes thank everyone for their prayers and good wishes and, like their doctors, are cautiously optimistic that the current course of treatment will be effective.”

Bush has been in the hospital for more than a month now, battling a fever that’s cause has not been released. This week, Bush was moved into the ICU of the hospital for staff to more closely monitor his condition, which was considered “guarded.” He was visited on Christmas by his wife, former First Lady Barbara Bush, and his son Neil Bush and Family. Other members of Bush’s family, including former President George W. Bush and former Florida Governor Jeb Bush, have also visited him during his stay in the hospital.

Bush is currently 88 years old, but was known to be healthy and active in the months and years before his current hospitalization.