Nigeria starts a mass vaccination campaign against Yellow Fever

The mosquito-borne disease kills tens of thousands of people each year. Nigeria plans to immunise twenty-five-million people by December.

Two of Southern Africa's newest leaders - Zimbabwe's President Emmerson Mnangagwa and South Africa's ANC Cyril Ramaphosa have been trying to make an impact at this week's World Economics Forum. We hear from Cyril Ramaphosa. Plus, the teenage models from Ghana who prove autism is no barrier to a modelling career.

(Image: Empty vials of yellow fever vaccines. Credit: Yasuyoshi Chiba/ AFP /Getty Images)