replace on dengue fever circumstances in Occitania

replace on dengue fever circumstances in Occitania

Occitania has grow to be the 2nd most colonized area in France by mosquitoes (after PACA). Past the not very nice itching, the presence of the tiger mosquito on the territory is synonymous with viral ailments: chikungunya, zika and dengue fever. In the intervening time, solely 36 circumstances have been recognized in 2022 in Occitania.

Again to highschool is commonly synonymous with getting back from journey and the viruses that we deliver again in our suitcases. Speaking about dengue fever within the West Indies or South America is altogether banal. It’s much less widespread in France the place the ARS educate docs and populations to keep away from any epidemic.

Normally, well being authorities establish round 100 circumstances in Occitania (2019-2020). Clearly, this determine dropped sharply in the course of the coronavirus pandemic when journey was very uncommon. The tiger mosquito which appeared barely 20 years in the past in France (2004) is positioned below surveillance in mainland France from Might 1 to November 30.

In accordance with the ARS of Occitanie, in 2021 1964 communes out of the 4454 communes within the area (44%) are colonized, which represents 88% of the regional inhabitants, or almost 5.5 million inhabitants.

This yr, it’s the division of Haute-Garonne which has essentially the most stories. There are 2 situations:

  • imported circumstances (introduced again from a visit): 30 in Occitania
  • indigenous circumstances (pone who contracted the illness with out having traveled to a contaminated space): 6 in Occitania

For ussays Isabelle Moussion, vector management coordinating engineer at ARS d’Occitanie, imported circumstances with out pretty commonplace. We now have educated attending physicians, carried out prevention campaigns to establish circumstances of dengue fever and deal with them shortly. Contaminated vacationers ought to stay vigilant for 7 days after analysis and proceed to make use of repellents to interrupt the chain of transmission. It’s extra sophisticated for Aboriginal circumstances. As a result of there, we have no idea the variety of individuals contaminated, nor the precise space of ​​distribution.

Docs have a tougher time diagnosing dengue for somebody who hasn’t traveled. As with the coronavirus, there could also be asymptomatic individuals, carriers of the illness with out declared indicators.

Right here is the departmental breakdown of the 6 indigenous circumstances in Occitania:

  • 1 within the Pyrénées-Orientales
  • 3 within the Hautes-Pyrenees
  • 2 in Haute-Garonne (particularly in Toulouse, declared very lately)

The mosquito has a radius of motion of solely 150m and when there may be contamination, the ARS considers that the outbreak is extinguished 45 days after the start of the keep of the contaminated individual.

The ARS has subsequently carried out an info marketing campaign aimed toward basic practitioners. As quickly because the signs are observed, the affected person should do a easy blood check to seek out out whether it is certainly a case of dengue fever. “All of the laboratories take such a pattern. Then they’re despatched to an evaluation consolidation heart as for different organic analysis. First, it’s a query of figuring out if we’re within the presence of dengue Then analysis continues to find out which serotype it’s.”

The virus chargeable for dengue fever belongs to the Flaviviridae household and has 4 distinct however intently associated serotypes. This an infection causes a flu-like syndrome and may often progress to life-threatening problemsknown as extreme or hemorrhagic dengue fever (2% of circumstances in France) which might result in demise.

Remedy ends in lifelong immunity to the serotype inflicting the an infection. Then again, the affected affected person can discover himself contaminated by different serotypes, which might improve the chance of growing extreme dengue fever.

There is just one vaccine “however it’s little utilized in prevention, acknowledges Isabelle Moussion of the ARS. You need to have had dengue fever earlier than for it to be efficient and protected.”

There isn’t a remedy for dengue however just for its signs. Aside from extreme circumstances which require hospitalization in one of many 4 SMITs in Occitania (SDivision of Infectious and Tropical Ailments), fever may be lowered by taking paracetamol.

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