1. National Infection Service, Public Health England, London, UK, Hospital for Tropical Diseases, London, UK
2. National Infection Service, Public Health England, London, UK, Department of Infection, Royal Free Hospital, London, UK
3. National Infection Service, Public Health England, London, UK
4. Aerospace Medicine Group, King´s College London, London, UK
5. Institute for Global Health, University College London, London, UK