Bush's spokesperson Jim McGrath said on Wednesday evening that the former president has been in the intensive care unit at Methodist Hospital in Houston since Sunday.
No details were immediately provided. But earlier on Wednesday McGrath said a fever that kept Bush in the hospital over Christmas had gotten worse and that doctors had put him on a liquids-only diet.
A bronchitis-like cough initially brought Bush to the hospital on Novebmber 23, where he has been since.
McGrath says the cough has improved, and that the 88-year-old is now coughing about once a day. – AP