1 French National Reference Centre for Arboviruses, Marseille, France.
2 UMR-D 190, Aix Marseille University, Institute of Research for Development, French School of Public Health, Marseille, 13005, France.
3 CIRE Antilles-Guyane-InVS, Gourbeyre, Guadeloupe, France.
4 UMR-D 190, Aix Marseille University, Institute of Research for Development, French School of Public Health, Marseille, 13005, France. Electronic address: xavier.de-lamballerie@univ-amu.fr.