Kaduna state Governor, Nasir el-Rufai refuted Bill Gates' complaint, reports Vanguard. He said the federal plan was fine and the problem was states needed to follow suit. But he did concede that there are serious problems in the health system:

The disease burden of the country is largely at the primary healthcare level and this primary healthcare system is broken completely. We need to rebuild it."

This comment came after Mr Gates pointed out that Nigeria has one of the worst maternal death rates in the world. How Africa reports that Mr Gates is due to attend Aliko Dangote's daughter's wedding today.

So that's the man who was once the world's richest man visiting the man who is currently Africa's richest man.