About the Authors
Epicentre, Paris, France
European Programme for Intervention Epidemiology Training (EPIET), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
Médecins Sans Frontières, Paris, France
The authors have declared that no competing interests exist.
NL, FJL, VG, and RFG had full access to all the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. NL, FJL, VG, SS, and RFG participated in the conception and design of the study; analysis and interpretation of data; and drafting the paper and revising it critically for substantial intellectual content.