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Dr Sam Costello is a consultant gastroenterologist at The Queen Elizabeth Hospital in Adelaide. He undertook a clinical fellowship at St Mark’s Hospital in London in 2016 and was awarded his PhD from The University of Adelaide in 2019 which focused on faecal microbiota transplant (FMT) as a treatment for ulcerative colitis. Dr Costello has been an invited speaker at both Australian and international conferences and has a number of peer-reviewed publications with a particular focus on the gut microbiome and FMT. Dr Costello co-founded the not for profit stool bank BiomeBank and co-ordinates the South Australian FMT service.