Uganda has declared an end to an Ebola outbreak that killed more than 50 people. The announcement follows a 42-day period without any new confirmed cases. The wife of French journalist Olivier Dubois, abducted by al-Qaeda-affiliated jihadists in Mali nearly two years ago, speaks about his ordeal and her efforts to try and secure his release. And we meet Cameroonian Professor Abdon Atangana who has been voted the world’s 2nd-best mathematician, by Stanford University.