1. Swiss Tropical and Public Health Institute, 4123 Allschwil, Switzerland
2. University of Basel, P.O. Box 4001 Basel, Switzerland
3. Africa Centres for Disease Control and Prevention, African Union Commission, Roosevelt Street W21 K19, Addis Ababa 3243, Ethiopia
4. Swiss Red Cross, 3001 Bern, Switzerland
5. ETH Zürich, Swiss Federal Institute of Technology, 8092 Zurich, Switzerland