Science: Autoimmune vaccine hope, why cats love tuna, IgNobels

Science correspondent Siouxsie Wiles joins Kathryn to talk about new research into a potential vaccine against autoimmune diseases, why cats love tuna so much and it's IgNobel time - when the best of the weird research is celebrated. It includes a robot study based on dead spiders, a toilet that monitors your health and jamais vu - that feeling when something familiar is suddenly...unfamiliar. Associate Professor Dr Siouxsie Wiles is the head of Bioluminescent Superbugs Lab at the University of Auckland