France - Indigenous cases of chikungunya 2025 on the mainland

[Pathfinder]

/https://en.wikipedia.org/wiki/Charente
----------------------------------------------------------------------------
Translation Google

Press release - An indigenous case of chikungunya detected in Charente (16) on 07/08/2025

Press release
August 7, 2025



An indigenous case of chikungunya was detected in Charente, and was confirmed by the Arbovirosis National Center for Disease Control and Prevention (CNR) on August 6. The person resides in Val-de-Cognac. Their health status is not a cause for concern.

Immediate measures have been implemented to limit any risk of spread.

We speak of an indigenous case when a person has contracted the disease on national territory and has not traveled to a contaminated area in the 15 days preceding the onset of symptoms . As a reminder, chikungunya is transmitted from person to person, only through the bite of a mosquito (tiger mosquito present in mainland France) infected with the chikungunya virus.

This new indigenous case confirms the existence of a risk of transmission of this virus in Nouvelle-Aquitaine. To date, this is the third episode of transmission identified in the region, after those in Landes and Pyrénées-Atlantiques.

Field actions to stop the spread of the virus

To prevent the spread of the disease, the Charente-Maritime departmental council (the operator of entomological monitoring of the tiger mosquito in Charente) carried out an initial mosquito control operation in Val de Cognac on the night of August 4 to 5, followed by home surveys aimed at eliminating larval breeding sites and adult mosquitoes that can transmit the virus.

In addition, a door-to-door survey will be carried out by the ARS Nouvelle-Aquitaine and Santé publique France, in collaboration with the town hall of Val-de-Cognac, in order to identify people who have experienced symptoms in the previous weeks or who currently have symptoms suggestive of chikungunya (fever above 38.5°C, joint pain, rash, fatigue, muscle pain) and inform them on what to do.

Finally, hospitals, private doctors, pharmacists and medical analysis laboratories in the sector are also mobilizing to care for, screen and remind people who may present symptoms of chikungunya of preventive measures. Adopt the right actions to protect yourself and your loved ones

1. Protect yourself from mosquito bites
   It is recommended:
   1. To install mosquito nets for newborns or bedridden people;
   2. To wear covering and loose clothing;
   3. Use a fan to keep mosquitoes away.
   In the area concerned (commune of Val-de-Cognac), it is recommended to apply a skin repellent, particularly in the morning and at the end of the day, after having consulted your pharmacist on the product to use.
2. Prevent the proliferation of mosquitoes
   It is necessary to eliminate stagnant water in which mosquitoes develop, by following simple and effective steps to be carried out once a week:
   1. Empty plant pots and anything that retains small amounts of water (garden furniture, tarpaulins, etc.);
   2. Store away from the rain anything that may contain water (children's toys, buckets, watering cans);
   3. Seal water containers tightly or cover them with mosquito netting.
   The ARS Nouvelle-Aquitaine monitors the tiger mosquito and mobilizes communities to combat its proliferation by adopting appropriate measures. Each year, it broadcasts a communication campaign "No quarter for mosquitoes" and provides town halls with a dedicated platform (prevention tools, social mobilization actions, etc.): Tiger Mosquito - Health Environment Nouvelle-Aquitaine .
3. Consult your doctor immediately if you experience any symptoms: high fever, joint or muscle pain, fatigue, headache, skin rash.

Chikungunya: increased surveillance in France

Between May 1 (start of enhanced surveillance) and August 5, 2025, the following were identified in mainland France:

1. 16 outbreaks of indigenous chikungunya transmission (1 to 13 cases per outbreak)
2. 5 outbreaks of indigenous dengue transmission (1 to 3 cases per outbreak);
3. 892 imported cases of chikungunya;
4. 698 imported cases of dengue fever;
5. 3 imported cases of Zika.

The ARS and Public Health France recall the importance of reporting cases which allows for rapid intervention aimed at limiting the indigenous transmission of the disease .

...

https://www.nouvelle-aquitaine.ars.sante.fr/communique-de-presse-un-cas-autochtone-de-chikungunya-detecte-en-charente-16-du-07082025

[Pathfinder]

Translation Google

Chikungunya: more than 60 indigenous cases recorded in mainland France

By Stanislas Deve

The chikungunya virus is now circulating locally in several regions of France. Authorities are calling for stronger preventive measures against the tiger mosquito.

Published on 07.08.2025 at 1:25 p.m. |

As the chikungunya epidemic ends in Réunion and continues in Mayotte, the virus is gaining ground in mainland France. For the first time, several regions of France are recording autochthonous cases, i.e., cases contracted locally, without prior travel to a contaminated area. Should we fear a wider epidemic?

An unprecedented local transmission

According to the latest report from Public Health France dated August 6, 63 indigenous cases have been recorded since June, compared to 49 a week earlier. The health agency warns: "The number of transmission hotspots illustrates the significant risk of indigenous transmission of these viruses in mainland France. Other cases will likely be identified, including outside the usual transmission zones."

Three major outbreaks have been identified: in Bouches-du-Rhône (16 cases), in Corse-du-Sud (13 cases), and in Hérault (12 cases). But the viral disease has also affected Drôme, Alpes-Maritimes, Isère, Gard, Var, Bas-Rhin, Landes, and Pyrénées-Atlantiques. "Such an early start to the mosquito's activity season and such a high number of episodes have never been observed before," Public Health France emphasized in a previous report. In total, since the beginning of 2025, more than 1,800 cases – imported and indigenous – have been recorded in mainland France, compared to around thirty in the previous two years.

Chikungunya, transmitted by the tiger mosquito ( Aedes albopictus ), presents with high fever and sometimes debilitating muscle and joint pain, particularly in the wrists, fingers, or ankles. Other symptoms include headaches, conjunctivitis, rashes, and swollen lymph nodes. While most patients recover within a week, about 20% may experience persistent pain.

Mosquitoes: essential barrier gestures

Two vaccines are available. Vimkunya, authorized in February 2025 in Europe, is recommended for travelers to high-risk areas, particularly those aged 12-65 with comorbidities. For others, vaccination should be "considered ." The Ixchiq vaccine, meanwhile, was reauthorized for those over 65 in July, after being suspended following reports of serious side effects in Réunion, including three deaths.

In the absence of widespread vaccination, prevention remains essential. In other words, protect yourself from bites by wearing loose, covering clothing, using repellents, and installing mosquito nets. But also by removing all stagnant water, which is conducive to the breeding of tiger mosquitoes.

https://www.pourquoidocteur.fr/Articles/Question-d-actu/52256-Chikungunya-60-cas-autochtones-recenses-metropole

[Pathfinder]

/https://en.wikipedia.org/wiki/Dijon
---------------------------------------------------------------------------
Translation Google

First case of indigenous chikungunya detected in Bourgogne-Franche-Comté

Press release
August 8, 2025



An indigenous case of chikungunya was confirmed on August 8 in Dijon, the first in the BFC region. The health of the infected person does not give cause for concern. A second indigenous case, linked to the first, is also strongly suspected. Preventive actions and control measures are being implemented reactively in specific areas to avoid any risk of spread.

A case of chikungunya was reported to the Bourgogne-Franche-Comté Regional Health Agency (ARS) and confirmed on August 8. The person, residing in Dijon, had not stayed in an area where the virus was actively circulating in the two weeks preceding the symptoms, this is a case having acquired the infection locally (so-called indigenous case), the first in Bourgogne-Franche-Comté.

A second indigenous case is strongly suspected . It concerns a person also living in Dijon, was declared on August 5, and remains to this day awaiting confirmation by the National Reference Center for Arboviruses.

Furthermore, since May 1 ^, 2025, Public Health France has recorded 35 imported cases of chikungunya in the region, including one within the area of the two current cases. The imported cases concern people who have traveled to contaminated areas.

Nationally, more than 960 cases of chikungunya were recorded by Public Health France over the same period, including 72 indigenous cases (Provence-Alpes-Côte-d'Azur, Corsica, Occitanie, Auvergne-Rhône-Alpes, Grand Est and Nouvelle Aquitaine) and nearly 900 imported cases.

Chikungunya is a viral disease transmitted to humans by the bite of an infected tiger mosquito. It typically presents with a sudden onset of fever, often accompanied by intense joint pain and a rash. In some cases, joint symptoms can last from a few weeks to several years, especially if the patient is older.

...

https://www.bourgogne-franche-comte.ars.sante.fr/un-premier-cas-de-chikungunya-autochtone-detecte-en-bourgogne-franche-comte