Installed for many years in the Indian Ocean and the Antilles (prolonged dengue epidemic in Guadeloupe and Martinique), the mosquito-tiger was established significantly and continuous in mainland France from the early 2000s.
It is now present in 81 departments.
The capacity d’Aedes albopictus To be a vector of chikungunya, dengue or zika virus, makes it a priority surveillance target for the health authorities and their partners, during its period of activity in mainland France: du 1er never au 30 November.
The objective of this reinforced monitoring is double: slow down the progress of the-tiger mosquito and limit the risk of transmission des arbovirus (Dengue, Chikungunya and Zika) of which he can be the vector in mainland France.
The mosquito-tiger is also very harmful (it also stings during the day, on several occasions; its bite can be painful).
In the Bourgogne-Franche-Comté region
Aedes albopictus is now located in 7 departments:
- in Saône-et-Loire, since 2014;
- in Côte-d’Or and Nièvre since 2018;
- in Doubs and Jura since 2020;
- in the territory of Belfort and in Yonne since 2023.
- In Haute-Saône since 2024
The ARS (via a demustic operator) implements surveillance in the 8 departments of the region by a network of-slum traps, mainly on the most populated urban units, in order to follow the dynamics of the progression of the mosquito. An entomological field survey is carried out for confirmation in the event of a new establishment, it can lead to considering a new commune as colonized.
In 2024, the number of colonized municipalities increased from 124 to 171.
The Regional Health Agency also occurs when a case of Chikungunya, Dengue or Zika is declared to its services (these diseases are compulsory/DO). An entomological prospecting survey is then triggered to identify or not the presence of the mosquito-tiger on the places frequented by the person during the viremic period (presence of the virus in the blood). In this case, insecticide treatment can be decided in order to combat the establishment of indigenous circulation of the disease. These operations are provided by authorized and specialized operators.
In 2024, 62 cases imported from arboviroses (a quarter of which were hospitalized) were reported in Burgundy-Franche-Comté during the reinforced surveillance period, giving rise to 49 entomological prospects, which themselves led to 7 treatments.
At the national level, the 2023 and 2024 seasons were exceptional in number of cases: a unpublished situation which should encourage a posture of vigilance and action. See the data of reinforced surveillance in France hexagonal 2024 on the public health site France here.
Recognize and signal the mosquito-tiger
Not all insects flying are not mosquitoes!
-Aedes albopictus is small: Less than 1 cm major. Black with white spots on the body and legs, it has a white line on the chest and a biter device.
Learn more and point out the mosquito On the report portal here.
Avoid his implantation
Before flying and stinging, mosquitoes develop in water, in the form of larvae.
Everyone can have the right gestures to avoid the proliferation ofAedes albopictus By removing small stagnant water tanks :
- Empty (once a week) cups and saucers under flower jars, animal bowls, folds of tarpaulins, buckets, parasol feet …
- Cover hermetically Water recuperators
- Store (out of the rain) The toys, wheelbarrows, buckets, watering cans
- Maintain the gutters, channels and channels
- Draw waste and used tires
- Create a balance in approval basins: fish eat mosquito larvae.
Travelers in risk areas
- Protect yourself from mosquito bites
- Continue to protect yourself from these bites on the return, for 3 weeks
- Consulting a doctor without delay in the event of symptoms because only the declaration to the ARS triggers the anti-vecotoral control measures
For all: eliminate stagnant waters, conducive to the development of mosquitoes
For people traveling in risk areas: protect themselves from mosquito bites
For people returning from zone at risk: continue to protect themselves from bites for three weeks. Consult a doctor without delay in case of symptoms.
ARS Bourgogne-Franche-Comté is fully mobilized in its role of surveillance and intervention; The agency is counting on everyone’s commitment, communities, professionals, users: this is the sum of individual and collective measures that will reduce risks.
Health professionals: Think of diseases transmitted by the mosquito-tiger!
The circulation zones of these 3 viruses are relatively superimposable, these are intertropical regions. But the emergence of indigenous cases in France has been observed in certain regions for a few years.
Any suspicion of a diagnosis of dengue, chikungunya or zika infection linked or not with a trip must be the subject of biological confirmation and Any confirmed case must be declared to the ARS using the compulsory declaration form.
