1. Department of Virology; Royal Free NHS Foundation Trust; London UK
2. Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine; Ghent University; Ghent Belgium
3. Instituut of Tropical Medicine (ITM); Antwerp Belgium
4. Institute of Health and Society (IRSS); Université Catholique de Louvain; Brussels Belgium
5. Institute for Global Health; University College London; London UK
6. Department of Public Health and Surveillance; Scientific Institute of Public Health (WIV-ISP); Brussels Belgium