How Bill Gates helped save 122m lives – and what he wants to solve next (the guardian)

In letter to philanthropic partner Warren Buffett, Gates defines achievements from vaccines to lives saved – while still pushing for gains in infant mortality ...
https://www.theguardian.com/world/2017/feb/14/bill-gates-philanthropy-warren-buffett-vaccines-infant-mortality?CMP=oth_b-aplnews_d-1