Billionaire and philanthropist Bill Gates, who spends millions of dollars on AIDS drug development, said he hoped for a vaccine against the disease within the next decade as a cure remains far off.
The bulk of the roughly 3 billion dollars given by the Gates Foundation to foster agriculture in poor countries has been given to aid groups based in rich nations.
Three of the world's richest men -- Bill Gates, Warren Buffett and Sheldon Adelson -- put aside their political differences to unite in scathing condemnation of US lawmakers' failure to implement immigration reform.
The world's wealthiest man Bill Gates would still pick up a $100 bill on the street, but he has no tips about how to get by on less than $100,000 a year.
Microsoft rebooted itself for a mobile future Tuesday, naming Indian-born Satya Nadella as its chief executive while founder Bill Gates sheds his title of chairman for a more hands-on role.
Bill Gates said Tuesday that the world must commit to wiping out the remaining cases of polio and finally eradicate the disease despite squeezed aid budgets and violence plaguing vaccination efforts.