The Gates Foundation's $5B Pledge

Microsoft co-founder Bill Gates wants Africa's next generation of tech entrepreneurs to build a brighter future for their nations, so his philanthropic foundation will donate another $5 billion during the next five years to help sustain economic progress, including against diseases like AIDS, Zika and malaria.

Gates made the announcement on Sunday during the annual Nelson Mandela lecture series at the University of Pretoria in South Africa.

The Bill and Melinda Gates Foundation, run by the tech billionaire and his wife, already has donated $9 billion to Africa since 2001, with a major focus on public health, which he calls a necessary bedrock for economic prosperity.