Forbes: Joe Cohen, a key inventor of the new malaria vaccine Gates helped bankroll...

So in 1997, when [Bill Gates] and Melinda first ventured into public health—their eponymous foundation would come into being in two years—they focused on birth control, funding a Johns Hopkins effort to use computers to help women in the developing world learn about contraception. The logic was crisp and Bill Gates-friendly. Health = resources ÷ people. And since resources, as Gates noted, are relatively fixed, the answer lay in population control.