Primrose Freestone, Associate Professor in Clinical Microbiology at the University of Leicester and science communicator, is an infectious diseases expert, and has dived into the debate of whether swimming in a pool or in the natural environment is the safer option. She also takes us through the cleanliness of hot-tubs (hint, they're gross.) Songs in this episode - all licensed under a Creative Commons License: Bugs - GNAAR Bugs - Phillip Barker Bug's Land - Vadim Krakhmal Little bugs - i m p a u s e a b l e Sapphire - Tobu Photo from wikimedia