The spokesman for the Bush family, Jim McGrath, released this statement on Wednesday:
The president is alert and conversing with medical staff, and is surrounded by family.
Following a series of setbacks including a persistent fever, President Bush was admitted to the intensive care unit at Methodist Hospital on Sunday where he remains in guarded condition.
Doctors at Methodist continue to be cautiously optimistic about the current course of treatment.
More top news
Deputy Prime Minister Nick Clegg launched his election battlebus today with an attack on the Conservative Party.
The rain band will soon be clearing eastwards, but more showers will be affecting parts of the UK this afternoon.
David Cameron will stand down as Conservative leader ahead of the general election expected in 2020, Iain Duncan Smith said.