The Microsoft co-founder is accelerating his plan as the U.S. and other countries cut funding for global health. In addition, Warren Buffett has said his donations to the Gates Foundation would end with his death.

Philanthropist Bill Gates announced that he will wind down his massive charity in 20 years, doubling spending over that time to accelerate the work it hopes to achieve.

The Gates Foundation has become a major funder of global health initiatives since its founding. Before the foundation closes, Gates said he expects it will focus on reducing preve