1. French Institute for Public Health Surveillance (InVS), Nord-Pas-de-Calais-Picardie regional office, Lille, France
2. Regional health agency Nord-Pas-de-Calais Picardie (ARS), Lille, France
3. French Institute for Public Health Surveillance (InVS), Saint Maurice, France
4. Etablissement de préparation et de réponse aux urgences sanitaires (EPRUS), Paris, France
5. Medical centres for vulnerable populations, Calais Hospital and refugee camp, Calais, France
6. Emergency ward and health care unit for vulnerable patients, Calais hospital, Calais, France
7. Médecins sans frontières (MSF), Paris, France