world warming and journey favor the fixed improve within the variety of dengue fever instances

world warming and journey favor the fixed improve within the variety of dengue fever instances

ARS Occitanie has reported 36 imported instances and 10 indigenous instances of dengue fever within the area since Might 1. A well being protocol and suggestions are in place. Different mosquito-borne viruses are additionally recognized.

Aveyron, Haute-Garonne, Pyrénées-Orientales, Tarn, Tarn-et-Garonne… Because the starting of the yr, the Occitanie regional well being company has been reporting instances of dengue fever in virtually all the departments of Occitanie. Within the area, a minimum of 45 instances of dengue fever have been confirmed since Might 1, 2022. Amongst them, 15 returned from Cuba.

Most of them are imported instances. However a minimum of 10 contaminations are autochthonous. In accordance with the well being authorities, because of this the sick individuals have been contaminated on nationwide territory with out having stayed in an space the place the virus is circulating. “A household dwelling of 4 indigenous instances of dengue fever, with out severity standards” was for instance recognized in Salvetat-Saint-Gilles in Haute-Garonne in August, reviews the ARS in a surveillance bulletin dated September 13.

Regardless of the restricted variety of imported instances, three chains of indigenous transmission
dengue fever have been documented in Occitania this season”signifies the ARS. In accordance with his data, one case is recorded in Perpignan 4 within the Hautes-Pyrénées, 4 others in Haute-Garonne and 1 in Tarn-et-Garonne.

To battle in opposition to the indigenous unfold of the dengue virus, ARS Occitanie applies a regional well being protocol. “A primary vector management therapy was carried out following the detection of the primary autochthonous case firstly of September, then a second, on an prolonged perimeter taking into consideration the place of residence of the imported main case.”. It’s a suburban residential space with gardens.

In complete, “85 entomological surveys and 48 vector management remedies have been carried out within the entourage of the instances”, explains ARS Occitanie once more.

A number of components clarify this regular improve within the variety of dengue instances, as defined by Yannick Simonin, virologist, lecturer in surveillance and examine of rising illnesses, College of Montpellier, on this article.

Because the “first detection on our territory, in 2004 in Menton, this small black mosquito with a physique and legs striped with white native to Southeast Asia and the Indian Ocean has not stopped rising its space. of French distribution. In lower than 20 years, it has invaded 67 out of 96 metropolitan departments (in comparison with solely 58 in 2020!). Its unfold all through the nation is inexorable.”

Local weather change can also be in charge. Lhe temperature, air humidity and precipitation favor a rise within the variety of mosquitoes. Traits encountered in the course of the summer season.

Lastly, the “industrial or vacationer exchanges, which have been rising exponentially for a number of a long time, can facilitate the unfold of viral illnesses, and particularly illnesses unfold by vectors reminiscent of mosquitoes. Proof of the significance of those components, in the course of the Covid-19 pandemic, the variety of instances of dengue fever infections from individuals getting back from journey outdoors the Antilles decreased significantly, primarily as a result of drastic drop in worldwide air transport.

To battle in opposition to the proliferation of mosquitoes, whether or not they carry a virus or not, it’s essential to undertake easy actions. As an example, “it is extremely vital to take away stagnant water that permits the replica of the mosquito, round its dwelling”, explains the ARS.

Thus, it is suggested to take away the saucers from the flowerpots or fill them with sand. To keep away from stagnation, we should “change the water within the vases a number of instances per week, examine that the gutters run easily, shelter from the rain or take away used tires and some other object that may fill with water”, specifies the ARS. In accordance with the regional physique, “these actions are important to restrict the proliferation of mosquitoes, sources of nuisance and illness”.

It is rather vital to take away stagnant water that permits the replica of the mosquito, round its dwelling

ARS Occitania

Folks going to areas the place the virus circulates should shield themselves from mosquito bites on the spot, but additionally on their return in the event that they dwell within the departments the place the mosquito is implanted.”, nonetheless signifies the ARS. Mosquito management operations are additionally carried out within the territories affected by contamination.

Generally often known as the “tiger mosquito”, theAedes albopictus originates from Asia. When he’s a service of the dengue virus, he can transmit it to people by easy chunk. For a number of years, the insect has been current in France and broadly established in a number of abroad territories, particularly in The assemblyat Mayotte and even in Guyana.

Along with the dengue virus, these of Zika and chikungunya have been reported in Occitania. In accordance with data from the ARS, two individuals have been contaminated by the primary in Haute-Garonne and in Hérault. One other affected person contracted chikungunya within the Hérault division.

The presence of mosquitoes within the area is defined by the climatic and meteorological situations of Occitania. Humid air, best temperatures and a few rainfall favor the replica of those bugs. As a result of elevated presence of the tiger mosquito, the 13 departments of Occitanie have been positioned beneath enhanced surveillance.

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