1. HKU‐Pasteur Research Pole School of Public Health The University of Hong Kong Hong Kong
2. World Health Organization Collaborating Centre for Infectious Disease Epidemiology and Control School of Public Health The University of Hong Kong Hong Kong
3. Service d'Immunologie Biologique Centre Hospitalier Universitaire Cochin Faculté de Médecine Assistance Publique–Hôpitaux de Paris Hôpital Universitaire Paris Centre Université Paris DescartesSorbonne Paris Cité Paris France
4. Institut Cochin INSERM U1016 Université Paris Descartes Sorbonne Paris Cité Paris France