About the Authors

Nathanael Lapidus

Affiliation Epicentre, Paris, France

Francisco J Luquero

Affiliations Epicentre, Paris, France , European Programme for Intervention Epidemiology Training (EPIET), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden

Valérie Gaboulaud

Affiliation Epicentre, Paris, France

Susan Shepherd

Affiliation Médecins Sans Frontières, Paris, France

Rebecca F Grais

To whom correspondence should be addressed. E-mail: rebecca.grais@epicentre.msf.org

Affiliation Epicentre, Paris, France

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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.