TO Laurent REBURS
Published in
1, May 24 at 8:20
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Season of Increased Surveillance vector diseases (i.e. transmitted by a vector), and the tiger mosquito begins May 1, 2024 Announces the Regional Health Agency of Centre-Val de Loire.
ARS takes this opportunity to once again call for increased vigilance remembering best practice for tiger mosquito control in France. After all, you should know that 2023 was marked noticeable increase about the presence of the tiger mosquito in the region Center Val de Loire.
Number of municipalities multiplied by two in Center Val de Loire
If no new department was colonized, number of municipalities in which he is now present was multiplied by two between July and October.
Each year, the enhanced surveillance period begins on 1 May on mainland France. It includes monitor implementation tiger mosquito and conduct research on each case of arbovirosis to avoid the risk as much as possible epidemic transmission.
In 2024, the number of imported cases of dengue fever in France, registered through mandatory declaration, will reach figures unprecedented since 2023.
Between 1 January and 26 March 2024, although data for recent weeks has not been consolidated, there were 1,038 cases of imported dengue fever reported on mainland France, compared to 76 for the same period in 2023. 83% of these cases returned from France . Martinique or Guadeloupe, where the epidemic has been observed since mid-2023. In our region alone, 110 cases of imported dengue fever were reported in the first quarter of 2024 in the Val-de-Loire Centre.
Preventing mosquito-borne diseases
Risk of local viral circulation dengue feverchikungunya or Zika from an imported case is limited to the period of activity of the tiger mosquito, currently from May to November in France. But this period may extend in the future due to climate change.
This risk is now increased given significant increase in the number of imported cases from epidemic zones (West Indies and Guyana especially).
Why this increased surveillance?
Preventing the risk of importation and spread of viruses such as dengue is achieved through the intervention of vector control services in areas frequented by people with dengue.
Vector control relies on surveillance, both through citizen reports and through a network of about 340 traps scattered across the region to detect the presence of the tiger mosquito.
The signals collected in this way allow follow the development of the vector but also to identify areas at risk of transmission. Which ultimately makes it possible to facilitate the prompt intervention of vector control services to implement mosquito control measures adapted to limit the risk of local transmission of these diseases.
Controlling viruses transmitted by tiger mosquitoes is everyone’s business. By influencing the environment and taking precautions to limit the risk of being bitten, everyone can do their part to combat mosquito-borne diseases. No measure is 100% effective; it is the sum of all these individual and collective measures that reduces transmission.
Fast, silent, the tiger mosquito bites during the day.
The vector of dengue fever is the tiger mosquito, recognizable by black and white stripes which pass through his body and legs.
It is small (about 5 mm). Fast and fairly quiet, bites throughout the day (especially in the morning and late afternoon). It’s a mosquito mostly urban and who moves little, “since he lives within a radius of 150 meters: therefore, the mosquito that bites you was born in your area!” »
If you need to travel
In most cases, dengue fever has few or no symptoms (you may temporarily carry the virus without even knowing it). Travelers are strongly advised to:
■ Before departure, find out about diseases circulating in the destination country(s);
■ Protect yourself from mosquitoes, especially in areas where these diseases circulate;
■ When you return, continue to protect yourself from mosquito bites for three weeks to avoid spreading the disease to loved ones through mosquitoes;
■ If symptoms occur (joint pain, muscle pain, headaches, rash, conjunctivitis with or without fever, etc.), strictly avoid being bitten and consult a doctor, indicating the area visited, date of return and date of onset of illness. symptoms.
■ These recommendations apply to anyone traveling to an area where dengue, chikungunya and Zika viruses are common.
Simple steps to prevent the spread of mosquitoes
To limit its spread and introduction into your environment, you must first prevent it from reproducing around you.
For this, remove stagnant water around your home: below flower potswaste children’s games, gutters, etc. All these are breeding grounds for larvae, that is, environments in which mosquito larvae develop very quickly. Removing these maggot breeding sites means immediate peace of mind.
If you get this disease, what should you do?
Treatment is predominantly symptomatic, including pain and fever. Aspirin and nonsteroidal anti-inflammatory drugs are contraindicated due to the risk of bleeding.
Patients should It is essential to obtain information to avoid mosquito bites during the viremic phase.which lasts about ten days (D-2 to D+7 from the onset of symptoms) to avoid transmitting the disease to loved ones through mosquito bites.
They should be advised to wear loose, covering clothing, use skin repellent, wear mosquito nets on openings (doors and windows) and use electric diffusers inside homes.
Reporting of any case of dengue fever, imported or indigenous, biologically documented (probable or confirmed), is mandatory and should be made as soon as possible to the Regional Health Agency to enable investigations and control measures to be taken in areas frequently visited people. patients during the viremic phase.
To continue disseminating information, please follow the Center-Val-de-Loire Regional Health Agency link HERE.
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