The father of the richest man in the world said that Gates plans to hand over his 65 billion pound fortune to the William H Gates Foundation, run by Gates Senior.

The software tycoon is expected to donate the majority of the money to funding vaccines to combat diseases such as malaria and Acquired Immune Deficiency Syndrome (AIDS). ``A widely distributed vaccine can help make the goal of a world without AIDS a reality,'' he said, reported by the paper. Gates' father, 73, said his son was shocked by the levels of disease and poverty encountered during travels to developing countries with his wife.Critics point out that Gates will receive generous tax breaks in the United States for his donations, the paper said. But a foundation spokesman denied that there was any link between the gifts and a dispute with the USgovernment over an alleged illegal monopoly, the paper added.