On this episode Lara and Vyanka talk to Prof John Trowsdale from The University of Cambridge all about the major histocompatibility complex (MHC) and all about his popular immunology book 'What the Body Knows'. This is ImmunoTea: Your Immunology Podcast, presented by Dr Lara Dungan and Dr Vyanka Redenbaugh. This is the show where we tell you all about the most exciting research going on in the world of immunology. So grab a cup of tea, sit down and relax and we'll fill you in. Contact us at ImmunoTeaPodcast@gmail.com or @ImmunoTea on twitter.