Chikungunya, Dengue, and Zika - Data from Enhanced Surveillance in Metropolitan France in 2022
From May 1 to November 30 each year, Santé publique France coordinates enhanced seasonal surveillance of chikungunya, dengue, and Zika in mainland France, in collaboration with the relevant Regional Health Agencies (ARS) (see surveillance system and partners).
Imported cases of chikungunya, dengue, and Zika in mainland France
From May 1 to December 9, 2022, the following were identified in mainland France:
272 imported cases of dengue; 255 were diagnosed in departments with documented presence of Aedes albopictus
22 imported cases of chikungunya
3 imported cases of Zika
Santé publique France reports an increase in the number of dengue cases in Guadeloupe observed since late November, as well as recent and ongoing circulation of the Zika virus in Thailand. In fact, the surveillance system has retrospectively identified a case of Zika with fetal complications contracted in Thailand in late 2021. The international travel medicine network, Geosentinel, has also identified five cases of Zika in Europe and Israel contracted by travelers in Thailand between March 16 and June 2. As a reminder, Zika is potentially present throughout the intertropical zone.
Number of confirmed or probable imported cases of chikungunya, dengue, and Zika, by region, in mainland France and for departments with documented populations of Aedes albopictus (May 1–December 9, 2022)
| Regions | Total mainland France | Departments with documented presence of Aedes albopictus | ||||||
|---|---|---|---|---|---|---|---|---|
| Dengue | Chikungunya | Zika | Flavivirus | Dengue | Chikungunya | Zika | Flavivirus | |
| Auvergne-Rhône-Alpes | 38 | 2 | 1 | 0 | 35 | 2 | 1 | 0 |
| Burgundy-Franche-Comté | 8 | 0 | 0 | 0 | 7 | 0 | 0 | 0 |
| Brittany | 5 | 0 | 0 | 0 | - | - | - | - |
| Centre-Val-de-Loire | 11 | 0 | 0 | 0 | 10 | 0 | 0 | 0 |
| Corsica | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Grand-Est | 7 | 0 | 0 | 0 | 7 | 0 | 0 | 0 |
| Hauts-de-France | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Ile-de-France | 76 | 10 | 0 | 0 | 76 | 10 | 0 | 0 |
| Normandy | 2 | 1 | 0 | 0 | - | - | - | - |
| New Aquitaine | 30 | 3 | 0 | 0 | 31 | 3 | 0 | 0 |
| Occitanie | 51 | 3 | 2 | 0 | 51 | 3 | 2 | 0 |
| Pays-de-la-Loire | 4 | 2 | 0 | 0 | 4 | 2 | 0 | 0 |
| Provence-Alpes-Côte d'Azur | 35 | 1 | 0 | 0 | 34 | 1 | 0 | 0 |
| Total | 272 | 22 | 3 | 0 | 255 | 21 | 3 | 0 |
| Country or region of stay | Number of cases |
|---|---|
| Cuba | 75 |
| India | 25 |
| Ivory Coast | 17 |
| Mexico | 16 |
| Nepal | 15 |
| Indonesia | 14 |
| Brazil | 9 |
| Guadeloupe | 9 |
| Reunion | 8 |
| Philippines | 7 |
| Dominican Republic | 7 |
| Vietnam | 7 |
| Thailand | 6 |
| Senegal | 6 |
| Kenya | 5 |
| Cambodia | 4 |
| Costa Rica | 4 |
| Sri Lanka | 3 |
| Maldives | 3 |
| Bangladesh | 3 |
| Singapore | 2 |
| Djibouti | 2 |
| Benin | 2 |
| Lao People's Democratic Republic | 2 |
| Congo, Democratic Republic of | 2 |
| Honduras | 2 |
| Pakistan | 2 |
| Cameroon | 1 |
| Mayotte | 1 |
| Togo | 1 |
| Guinea | 1 |
| Congo | 1 |
| Colombia | 1 |
| Ecuador | 1 |
| Seychelles | 1 |
| Sao Tome and Principe | 1 |
| Mali | 1 |
| Mauritius | 1 |
| Peru | 1 |
| Burkina Faso | 1 |
| Comoros | 1 |
| Under investigation | 1 |
| Total | 272 |
| Country or region of stay | Number of cases |
|---|---|
| Indonesia | 10 |
| Brazil | 6 |
| Ivory Coast | 2 |
| Philippines | 1 |
| Burkina Faso | 1 |
| Chad | 1 |
| Senegal | 1 |
| Total | 22 |
| Country or area of travel | Number of imported cases |
|---|---|
| Thailand | 3 |
| Total | 3 |
List of departments with documented occurrences of Aedes albopictus as of May 1, 2022
Ain, Aisne, Alpes-de-Haute-Provence, Alpes-Maritimes, Ardèche, Ariège, Aude, Aveyron, Bas-Rhin, Bouches-du-Rhône, Cantal, Charente, Charente-Maritime, Cher, Corrèze, Corse-du-Sud, Côte d'Or, Deux-Sèvres, Dordogne, Doubs, Drôme, Essonne, Gard, Gers, Gironde, Haute-Corse, Haute-Garonne, Hautes-Alpes, Hautes-Pyrénées, Haute-Savoie, Haut-Rhin, Hauts-de-Seine, Haute-Vienne, Hérault, Indre, Indre-et-Loire, Isère, Jura, Landes, Loire, Loire-Atlantique, Lot, Lot-et-Garonne, Lozère, Maine-et-Loire, Mayenne, Nièvre, Paris, Puy-de-Dôme, Pyrénées-Atlantiques, Pyrénées-Orientales, Rhône, Saône-et-Loire, Savoie, Seine-et-Marne, Seine-Saint-Denis, Tarn, Tarn-et-Garonne, Val-de-Marne, Var, Vaucluse, Vendée, Vienne, Yvelines, Val-d’Oise, Meurthe-et-Moselle, Loiret.
View the map showing the distribution of the tiger mosquito (Aedes albopictus) in mainland France
Local case of Usutu virus infection in mainland France
In Nouvelle-Aquitaine, an indigenous case of Usutu virus infection, with symptoms beginning on September 18, 2022, was confirmed by the National Reference Center for Arboviruses via serology with seroneutralization on November 4, 2022. No other cases have been identified.
Local cases of dengue in mainland France
Nine dengue transmission clusters, totaling 65 locally acquired cases of dengue, had been identified as of October 16, 2022. All clusters are currently closed.
In the Occitanie region:
5 outbreaks totaling 12 cases:
In the Pyrénées-Orientales, in Perpignan, one locally acquired case of dengue fever whose symptoms began in mid-June. No other cases have been identified since, and this outbreak is closed.
In the Hautes-Pyrénées, an outbreak of 4 cases in the municipalities of Andrest (3 cases) and Rabastens (1 case), with symptoms beginning between mid-July and the end of August.
In Haute-Garonne, in La Salvetat-Saint-Gilles, a cluster of 4 dengue cases occurred within the same household, with symptoms beginning in the last two weeks of August. No other cases have been identified since, and this episode is closed.
In Tarn-et-Garonne, 1 case likely contracted during a stay in Montauban in late August.
In Haute-Garonne, an outbreak of two cases in Toulouse, occurring within the same household, with symptoms beginning in the second half of September.
Learn more: epidemiological update on arboviruses in the Occitanie region and press release from the Tarn-et-Garonne Prefecture.
In the Provence-Alpes-Côte d'Azur region:
3 clusters totaling 51 cases:
In the Var department, in Fayence, an outbreak of 7 dengue cases, with symptoms beginning between late June and late July. This outbreak is now over.
In the Alpes-Maritimes:
An outbreak of 34 cases in the neighboring municipalities of Saint Jeannet (22 cases), Gattières (11 cases), and La Gaude (1 case). Symptoms began between early August and late September.
An outbreak of 10 cases reported in the municipalities of Saint-Laurent-du-Var (9 cases) and Cagnes-sur-Mer (1 case exposed in Saint-Laurent-du-Var). Symptoms began between mid-August and mid-September.
These two outbreaks are distinct because they are caused by different serotypes of the virus (DENV 1 and 3).
Learn more: epidemiological update for the PACA region and press release from the PACA Regional Health Agency
In the Corsica region:
An outbreak involving two locally acquired cases whose symptoms began in mid-September (read the press release).
For each identified case or outbreak, epidemiological investigations have been conducted or are underway to identify any other potential cases and precisely define the transmission area. Healthcare professionals in the affected areas have been trained to recognize and report any other potential cases of dengue. Entomological surveys and mosquito control measures have been carried out or are currently underway by the mosquito control operator.
For more information: “Autochthonous dengue in mainland France, 2022: geographical extension and incidence increase, Eurosurveillance 2022”
