Simon Carding is a head of Carding's group. The group conducts researches with a major focus on understanding the mechanisms of intestinal microbial (bacterial and viral) tolerance. In particular, identifying the pathways and mediators of microbe-host cross talk and the role they play in establishing and maintaining gut health and in diseases that not only affect the gut but other organ systems. This has led to the development of new research projects relating to the gut-microbiome-brain axis and understanding how the intestinal microbiome impacts on mental health and the development of neurodegenerative diseases, and the intestinal virome and the role that prokaryotic and eukaryotic viruses play in microbial homeostasis and dysbiosis.