The tiger mosquito is responsible for the first case of native arbovirosis in New Aquitaine
Health

The tiger mosquito is responsible for the first case of native arbovirosis in New Aquitaine

85% of the Gironde population is currently affected by the infestation of the tiger mosquito. frank29052515 / stock.adobe.com

The tiger mosquito has been in the Gironde since 2004, it is increasingly present in Bordeaux and in the province, well adapted to the urban environment.

Le Figaro Bordeaux

For ten years, he was gradually settling in the country. The tiger mosquito, which is native to Southeast Asia, is now well established in New Aquitaine, mainly in two divisions, Gironde and Lot-et-Garonne. However, the risk of spreading sexually transmitted diseases and viruses such as dengue fever, Zika or West Nile virus is high. This October, the first authentic case of one of these diseases was discovered in the Landes Islands, and it could spread. Analyzes are underway to accurately identify the disease.

The risk of spreading these diseases is linked to the tiger mosquito, says Baptiste Groff, director of indoor environment and health at the Gironde delegation for the regional health agency. In order for a person to become infected with an arthropod virus, they must first bite a traveler from an endemic area. Once the virus is ingested by a tiger mosquito, it can infect others. This is what happened in the Land Islands. A scenario that can be repeated.

All conditions have been met to aggravate the situationBaptist Grove warns.From year to year, the tiger mosquito gains ground towards the north,“With a season that runs from the beginning of May until the end of November. “Hoping we have winterSays the engineer.The future will be made with these diseases in France and EuropeDr Marie Claire Baty warns of public health in France.

Less mobile than the common mosquito, which can travel about twenty kilometers, the tiger mosquito does not move more than 150 meters from the place where it was born. So the person who bites you was born very close to where you are. They are mainly artificial vessels with standing water, such as plant pots, that allow the species to reproduce quickly. “Even a thimble can put mosquito droppingsBaptist Grove recalls. A female can lay more than a hundred eggs at once. Once the water rises and extends over the spawning area, a new spread is feared.

Remove areas where water stagnates

Smaller, diurnal and less mobile than the original mosquito, the tiger mosquito is of no interest to the species’ usual predators, bats, frogs, and dragonflies. Once installed, it becomes difficult to remove. “We know we can’t eliminate his existenceBaptist Grove warns. The only solution to stopping its spread depends on good individual reactions.

The ARS system is especially encouraged to control rainwater catchments, because even if they have a cover, mosquitoes can enter and exit the gutter to breed there. It is also highly recommended to get rid of all places where water can accumulate. Placing sand in potting dishes, for example, allows the plant to continue drawing in water but prevents mosquitoes from laying eggs there. Water tanks (canisters, cisterns, basins, and unused pools) should also be covered.

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