My research team studies the role of various genetic and environmental factors in the predisposition to common diseases and traits, including gastrointestinal and autoimmune diseases and ageing. A major research line focuses on the composition of the gut microbiome and virome in cohorts of adults and babies. We explore factors that shape the microbiome, including genetics, diet, medication and other environmental factors, and the role of the microbiome in gut health and common diseases.