Former U.S. President George H.W. Bush was moved to the intensive care unit at a Houston hospital due to a persistent fever, his spokesman said.
Bush has been at Methodist Hospital since Nov. 23 when he was admitted for a cough, the Houston Chronicle reported.
The 41st president was moved to the intensive care unit of the hospital Sunday for treatment of a fever, Bush's spokesman Jim McGrath said.
"He is considered in guarded condition," McGrath said. "He has suffered a series of setbacks."
Doctors are treating Bush's fever with Tylenol but it's not responding to the treatment, McGrath said.
Bush has had various health problems in recent years, including being diagnosed with lower body Parkinsonism in February.
McGrath said Bush is alert, has a "running banter'' with his nurses and is surrounded by family.
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