Indigenous cases of dengue fever in the Var and in the Alpes-Maritimes: update

Indigenous cases of dengue fever in the Var and in the Alpes-Maritimes: update

As a reminder, dengue is transmitted from person to person through the bite of a tiger mosquito infected with the virus. 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.

Circulation of dengue fever in Fayence (Var)

Following the last situation update on August 24, 1 new autochthonous case of dengue was detected in the municipality of Fayence, i.e. 6 cases in total. These people all presented their symptoms between the end of June and the end of July and are all located in the same sector of the town, confirming the circulation of the virus in this area.

Circulation of dengue in Saint-Jeannet (Alpes Maritimes)

Following the identification of a first autochthonous case of dengue fever on August 23 in the commune of Saint
Jeannet, 4 other cases have since been reported by health professionals in the sector, i.e. 5 cases in total. These people started their symptoms between August 7 and 18 and are all located in the same sector of the town, again confirming the circulation of the virus in this area.
None of the cases showed signs of seriousness.

The number of indigenous cases identified is updated each week in the point
epidemiology of the regional unit of Public Health France.

Vector control: public health mosquito control treatment

To limit the spread of the disease, mosquito control operations are carried out by the Interdepartmental Agreement for Mosquito Control of the Mediterranean Coast (EID-Med) in the areas where cases live (public roads, private gardens), as well as in places they frequented during their periods of contagiousness. These interventions make it possible to eliminate potentially infected adult mosquitoes and eliminate breeding sites to limit the proliferation of mosquitoes in these sectors.

These mosquito control actions are supplemented by door-to-door interventions by ARS Paca and Public Health France to inform the population of these districts, remind people of preventive measures and identify any other suspected cases of dengue.

These investigations and treatments are currently continuing in the areas concerned.
In this context of the circulation of dengue, health professionals (hospitals, private doctors and medical analysis laboratories) are made aware of the identification and diagnosis of people who could present the symptoms of dengue.

The clinical signs associated with this disease are a high fever (>38.5°C) of sudden onset, associated with at least one other clinical sign such as headaches, muscle or joint or lumbar pain and in the no cough, runny nose, sore throat, difficulty breathing or infected wounds.

Everyone, by changing their behavior, can protect themselves and their loved ones.

1. Avoid the proliferation of mosquitoes
To limit the development of mosquitoes around your home, you should:

  • store anything that can hold water (buckets, watering cans) away from the rain;
  • hermetically tarpaulin or cover with a mosquito net the water reserves (barrel, canister, untreated swimming pool);
  • ensure that the gutters run smoothly;
  • pick up green waste that can become resting places for adult mosquitoes;

2. Protect yourself from mosquito bites
It is advisable to:

  • wear covering and loose clothing;
  • use a skin repellent, preferably in the morning and in the evening, recommended by a pharmacist, on exposed areas of skin;
  • if necessary, use mosquito nets on the openings (doors and windows);
  • using crib nets for infants;
  • use electric diffusers inside homes;
  • use insecticide coils only outdoors;
  • use air conditioners or fans that interfere with mosquitoes.

3. Consult your doctor immediately in the presence of suggestive symptoms (high fever of sudden onset, muscle or joint pain, eye pain, fatigue, headache), especially if they appear within 15 days of returning from a trip to the tropics.

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