THE United Kingdom and the United States have pledged to bolster the treatment of Tanzania’s former president, Mwalimu Julius Nyerere, who is critically ill at the Saint Thomas hospital in the UK, an official source in the Tanzanian capital Dar es Salaam said. Nyerere is suffering from chronic lymphocytic leukaemia. A medical report issued on Tuesday by the hospital said his condition has improved steadily as his fever has subsided and the jaundice eased. The statement further said that although his liver is functioning well, he is still on a life-support machine. Vice-President Rashidi Kawawa has, meanwhile, flown to London to be with Nyerere’s wife and children.