1. University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
2. The Migrant Health Research Group, Institute for Infection and Immunity, St George’s, University of London, London, UK
3. European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
4. Queen Mary’s, University of London, London, UK
5. McGill University, Department of Medicine, Montreal, Canada
6. University of Leicester, Leicester, UK
7. Faculty of Public Health and Policy, London School of Hygiene & Tropical Medicine, London, United Kingdom
8. Translational Research Unit, Department of Epidemiology and Preclinical Research, National Institute for Infectious Diseases L. Spallanzani, Rome Italy