There are few circumstances where receiving a package of human faeces is a welcome delivery, but for scientists in a Swiss laboratory, they were delighted. The Microbiota Vault Project is collecting stool samples in the hopes of building a global collection of gut bacteria so that the different species are not completely lost. But why is this necessary?

Prof Adrian Egli is the Director of the Institute of Medical Microbiology and a member of the vault launch team and he joined Sean on the show to discuss…

Image: Microbiota Vault