26 instances of autochthonous dengue fever referenced because the starting of Could

26 instances of autochthonous dengue fever referenced because the starting of Could

France – Since Could 1, 26 instances of autochthonous dengue have been reported in mainland France within the Provence-Alpes-Côte d’Azur and Occitanie areas, in line with a press launch from the DGS.[1].

These instances occurred in individuals who had not traveled to an space the place the virus is circulating within the 15 days previous the onset of signs.

If the variety of instances stays low general, it’s nonetheless a file in mainland France.

Within the earlier three years, 2019, 2020 and 2021, 9, 13 and two autochthonous dengue instances respectively have been reported in the course of the annual surveillance interval from the start of Could to the top of November.

In mainland France, the mosquito Aedes albopictus or tiger mosquito, vector of the illness, is at the moment completely established in 67 departments – in comparison with 51 in 2019.

Signs and Prognosis

Dengue fever is suspected within the presence of a excessive fever (40°C), accompanied by 2 of the next signs: extreme headache, retro-orbital, muscle or joint ache, nausea, vomiting, lymphadenopathy or rash. Signs seem inside 3 to 14 days (4 to 7 days on common) following the mosquito chew.

Extreme (haemorrhagic) dengue fever happens in about 1% of instances. It’s a life-threatening complication attributable to plasma leakage, fluid accumulation, respiratory misery, profuse bleeding, or organ failure. The warning indicators happen 3 to 7 days after the primary signs, along with a drop in temperature (beneath 38°C).

The related signs are extreme stomach ache, persistent vomiting, hyperpnea, bleeding gums, fatigue, restlessness, blood within the vomitus. Demise can happen inside 24 to 48 hours of this crucial section; acceptable medical remedy is then essential to keep away from issues and the chance of loss of life (which stays low).

“Dengue fever impacts infants, younger kids and adults alike,” remembers the DGS, which specifies that “remedy is symptomatic, particularly ache and fever. Aspirin and non-steroidal anti-inflammatory medication are contraindicated as a result of threat of bleeding”.

Which diagnostic strategy?

The diagnostic strategy advisable within the ministerial plan “anti-dissemination of chikungunya and dengue fever” is as follows: – As much as 5 days after the onset of indicators (D5): RT-PCR – Between D5 and D7: RT-PCR and serology -After D7: serology solely (IgG and IgM) with a second affirmation pattern no sooner than 10 days after the primary pattern Blood samples will be taken by any evaluation and medical biology laboratory. Every pattern have to be accompanied by a medical data sheet.

Restrict the proliferation of mosquitoes

To keep away from the looks of epidemic foci of dengue but additionally of chikungunya or zika in mainland France, the DGS remembers a couple of easy measures to undertake:

1. Keep away from the proliferation of mosquitoes

Retailer something that may comprise water (buckets, watering cans) away from the rain; hermetically tarpaulin or cowl with a mosquito web the water reserves (barrel, canister, untreated swimming pool); frequently empty the saucers of the flower pots;

Be certain that the gutters run easily;

Choose up inexperienced waste that may turn into resting locations for grownup mosquitoes.

2. Shield your self from mosquito bites

Put on protecting and free clothes;

Use a pores and skin repellent, ideally within the morning and within the night, advisable by a pharmacist, on uncovered areas of pores and skin;

If crucial, use mosquito nets on the openings (doorways and home windows);

Use crib nets for newborns;

Use electrical diffusers inside properties;

Use insecticide coils solely open air;

Use air conditioners or followers that intervene with mosquitoes.

3. Seek the advice of instantly

his attending doctor within the presence of suggestive signs (excessive fever of sudden onset, muscle or joint ache, eye ache, fatigue, headache), particularly if a prognosis of COVID has been dominated out and if they seem inside 15 days following the return from a visit to the tropics. This session is crucial to have the ability to be taken care of and to learn of the well being suggestions to keep away from transmitting the illness in flip (avoiding being bitten by mosquitoes in the course of the interval of contagiousness).

It must also be famous that the inhabitants is known as upon to report the presence of tiger mosquitoes of their municipality, particularly since it isn’t but colonized, by reporting it on the official portal of the well being authorities: signalement-mosquito .anses.fr.

The well being authorities additionally remind well being professionals that it’s “crucial to report back to their regional well being company any case of dengue fever, chikungunya or zika”.

In parallel with particular person actions, mosquito management operations are arrange by the ARS as quickly as an imported case or an area case is reported so as to perform vector management remedies and thus restrict the unfold of the illness.

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