Dr Christoph T Berger is a research group leader in the Department of Biomedicine at the University of Basel. He is also a senior physician in clinical immunology and heads the vaccination clinic at University Hospital Basel. His research interests include investigating the human immune response to viruses and vaccines in healthy and immunocompromised subjects. He has conducted several prospective studies on influenza vaccination and co-founded a cohort of patients with autoimmune disease. He completed his MD at the University of Basel and did most of his postdoctoral studies in Boston, USA, at the Ragon Institute of MGH, MIT and Harvard.