Head of the Infectious Diseases Clinic of the Policlinico San Martino University Hospital in Genoa and Professor of Infectious Diseases of the University of Genoa, Italy.

Director & Chair of Translational Research at the CECAD Institute of the University of Cologne, and Scientific Director of the Center for Clinical Trials. Clinically, he serves as Infectious Diseases Consultant at the University Hospital of Cologne, Germany.

Reader and Consultant in Infectious diseases at St George's University of London.