About the Authors
Epicentre, Paris, France
Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
Médecins Sans Frontières, French section, Paris, France
Alert and Response Operations, Epidemic and Pandemic Alert and Response, World Health Organization, Geneva, Switzerland
The authors have declared that no competing interests exist.
Conceived and designed the experiments: FC PP DL GP FT. Performed the experiments: PP HA FT. Analyzed the data: PP GP. Wrote the paper: FC GP.