Facebook's founder Mark Zuckerberg and his wife Priscilla Chan have pledged $3bn to fund medical research over the next decade, BBC reported on Thursday.
At a press conference in San Francisco, they said their ultimate goal was to "cure, prevent or manage all diseases by the end of the century".
The funds will be distributed by the Chan Zuckerberg Initiative, which they created in December 2015.
Zuckerberg said that at present 50 times more money was spent on treating people who are sick than on curing the diseases that would stop them getting ill in the first place, and added that this needed to change.
He outlined three principles that will guide the couple's investments:
- to bring scientists and engineers together
- to build tools and technology that advance research
- to grow the movement to fund more science around the world
Chan added that they had already committed $600m to creating a new research center called the Biohub, which will bring together engineers, computer scientists, biologists, chemists and other innovators.
But Zuckerberg cautioned that it would take years before the couple's fund led to the creation of new medical treatments and further time before they could be applied to patients.
Tech leaders are increasingly turning their attention to health.
Earlier in the week, Microsoft said it intended to "solve" c
ancer by using artificial intelligence tools.
Google's DeepMind unit is working with the NHS to find a way to use computers to more accurately diagnose diseases.
And IBM and MIT announced a tie-up earlier this week to develop AI-based systems that could help clinicians improve the care of elderly and disabled patients.