1. Infectious Diseases Unit Department of Medical and Surgical Sciences IRCCS Azienda Ospedaliero‐Universitaria di Bologna, Policlinico di Sant’Orsola Alma Mater Studiorum University of Bologna Bologna Italy
2. Department of Infectious Diseases University of São Paulo School of Medicine Hospital das Clínicas São Paulo Brazil
3. Transplantation and Liver Surgery Helsinki University Hospital and University of Helsinki Helsinki Finland
4. Infectious Diseases Service and Transplantation Center Lausanne University Hospital Lausanne Switzerland