In this episode, Nicola Twilley and Geoff Manaugh, co-authors of 'Until Proven Safe: The History and Future of Quarantine', lead us through the architecture and mores of medical isolation from 14th-century Europe to present-day China into the dystopian beyond. The SCMP presents the Post Books Podcast, with Literary Editor Charmaine Chan, in conversation with authors worldwide about their craft and their books.