1. Médecins Sans Frontières, Operational Center Paris, Paris, France
2. Department of Medical Microbiology and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
3. Médecins Sans Frontières, Operational Center Amsterdam, Amsterdam, The Netherlands
4. Médecins Sans Frontières, Amman, Jordan
5. Médecins Sans Frontières, Aden, Yemen