Chikungunya, Dengue, and Zika - Data from Enhanced Surveillance in Metropolitan France in 2020
From May 1 to November 30 each year, Santé publique France coordinates enhanced seasonal surveillance for chikungunya, dengue, and Zika in the metropolitan departments where the vector mosquito, Aedes albopictus, is present, in collaboration with the relevant Regional Health Agencies (ARS) (see surveillance system and partners).
From May 1 to November 27, 2020, the following cases were confirmed:
834 imported cases of dengue (of which 64% had visited Martinique and 23% Guadeloupe);
6 imported cases of chikungunya;
1 imported case of Zika.
Since the start of this enhanced surveillance period, six indigenous dengue outbreaks have been identified, for which epidemiological investigations and field actions were immediately implemented (notably vector control):
In Provence-Alpes-Côte d'Azur, three outbreaks were identified:
An outbreak of 3 locally transmitted dengue cases with onset dates (OD) between August 1, 2020, and August 11, 2020, in La Croix-Valmer (Var).
Another cluster of 5 cases in Nice with onset dates (OD) ranging from August 11, 2020, to September 4, 2020.
A cluster of 2 cases with OODs ranging from September 19, 2020, to October 4, 2020, in Saint Laurent du Var.
In Occitanie, three isolated autochthonous cases were also reported:
One locally acquired case of dengue fever in the Hérault department with a DDS on 07/17/2020.
One locally acquired case of dengue contracted in Hérault or Gard, with a date of onset on August 31, 2020.
One locally acquired case of dengue in the Gard department with a date of onset (DDS) on September 3, 2020.
See also the dengue situation in Martinique and Guadeloupe: view overseas data
| Number of confirmed cases of chikungunya, dengue, and Zika by region involved in enhanced surveillance (cases counted only for departments where Aedes albopictus is present), from May 1 to November 27, 2020 | ||||||
|---|---|---|---|---|---|---|
| Regions | Confirmed imported cases | Confirmed local cases | ||||
| Dengue | Chikungunya | Zika | Dengue | Chikungunya | Zika | |
| Grand-Est | 29 | 1 | 0 | 0 | 0 | 0 |
| Nouvelle-Aquitaine | 53 | 0 | 0 | 0 | 0 | 0 |
| Auvergne-Rhône-Alpes | 104 | 2 | 0 | 0 | 0 | 0 |
| Burgundy-Franche-Comté | 16 | 0 | 0 | 0 | 0 | 0 |
| Centre-Val-de-Loire | 4 | 0 | 0 | 0 | 0 | 0 |
| Corsica | 9 | 0 | 0 | 0 | 0 | 0 |
| Ile-de-France | 331 | 2 | 1 | 0 | 0 | 0 |
| Occitanie | 124 | 0 | 0 | 3 | 0 | 0 |
| Hauts-de-France | 0 | 0 | 0 | 0 | 0 | 0 |
| Pays-de-la-Loire | 44 | 0 | 0 | 0 | 0 | 0 |
| Provence-Alpes-Côte d'Azur | 120 | 1 | 0 | 10 | 0 | 0 |
| Total | 834 | 6 | 1 | 13 | 0 | 0 |
List of departments where Aedes albopictus is present as of May 1, 2020: Ain, Aisne, Alpes de Haute-Provence, Alpes-Maritimes, Ardèche, Ariège, Aude, Aveyron, Bas-Rhin, Bouches-du-Rhône, Charente, Charente-Maritime, Cher, Corrèze, Corse-du-Sud, Côte-d'Or, Deux-Sèvres, Dordogne, Drôme, Essonne, Gard, Gers, Gironde, Haute-Corse, Haute-Garonne, Hautes-Alpes, Hautes-Pyrénées, Haute-Savoie, Haut-Rhin, Hauts-de-Seine, Hérault, Indre, Isère, Landes, Loire, Loire-Atlantique, Lot, Lot-et-Garonne, Lozère, Maine-et-Loire, Nièvre, Paris, Puy-de-Dôme, Pyrénées-Atlantiques, Pyrénées-Orientales, Rhône, Saône-et-Loire, Savoie, Seine-et-Marne, Seine-St-Denis, Tarn, Tarn-et-Garonne, Val-de-Marne, Var, Vaucluse, Vendée, Vienne, Yvelines.
Maps showing the presence of the tiger mosquito (Aedes albopictus) in mainland France: click here
