1. Institute of Tropical Medicine and International Health, Charité – Universitätsmedizin Berlin, Berlin, Germany
2. Division of Global Migration and Quarantine, National Center for Emerging and Zoonotic Infectious Disease, Centers for Disease Control and Prevention, Atlanta, United States
3. Department of Infectious Diseases, Oslo University Hospital, Oslo, Norway
4. Department of Infectious Diseases, Aarhus University Hospital, Skejby, Aarhus, Denmark
5. Maxwell Finland Laboratory for Infectious Diseases, Boston Medical Center, Boston, United States
6. Division of Infectious Diseases and International Medicine, University of Minnesota Medical School, St Paul, United States
7. University Medical Center Hamburg-Eppendorf, Department of Tropical Medicine and Infectious Diseases, Bernhard Nocht Clinic, Hamburg, Germany
8. Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
9. Department of Global Health and Center for Global Health and Development, Boston University School of Public Health; Section of Infectious Diseases, Department of Medicine, Boston Medical Center, MA, USA
10. University Hospital Institute for Infectious and Tropical Diseases, Aix-Marseille University, Marseille, France
11. University of Zürich Centre for Travel Medicine, WHO Collaborating Centre for Travellers’ Health, Epidemiology, Biostatistics and Prevention Institute, Zürich, Switzerland