The tiger mosquito answerable for the primary case of autochthonous arbovirosis in New Aquitaine
Current in Gironde since 2004, the tiger mosquito is more and more current in Bordeaux and within the division, adapting very nicely to the city surroundings.
For ten years, he has been progressively settling within the nation. The tiger mosquito, native to Southeast Asia, is now nicely established in New Aquitaine, and primarily in two departments, Gironde and Lot-et-Garonne. With it, the chance of spreading ailments, arboviruses akin to dengue fever, Zika or the West Nile virus, could be very current. On this month of October, the primary autochthonous case of certainly one of these ailments was detected within the Landes, and will unfold. Analyzes are underway to find out exactly what illness it’s.
The chance of spreading these ailments is linked to the tiger mosquito, says Baptiste Groff, indoor surroundings and well being supervisor on the Gironde delegation of the regional well being company. For an individual to be contaminated with an arbovirus, a traveler from an endemic space should first be bitten. As soon as the virus has been digested by the tiger mosquito, it could possibly then infect different individuals. That is what occurred within the Landes. A state of affairs that might be repeated.
“All of the situations are met for the state of affairs to worsen“warns Baptiste Groff. “From 12 months to 12 months the tiger mosquito is gaining floor in the direction of the north,» with a season that runs from the start of Could to the top of November. “Hoping we’ve a winter“says the engineer. “The longer term will probably be made with these ailments in metropolitan France and in Europe“Warns Physician Marie-Claire Paty, of Public Well being France.
Much less cell than the widespread mosquito, which might journey round twenty kilometres, the tiger mosquito doesn’t transfer greater than 150 meters from the place the place it was born. The one who stings you was due to this fact born very near the place you’re. It’s primarily synthetic receptacles with standing water, akin to plant pots, that enable the species to breed shortly. “Even in a thimble he can lay a litter of mosquitoes“remembers Baptiste Groff. Greater than 100 eggs might be laid without delay by a feminine. As quickly because the water rises and extends over a spawning space, a brand new proliferation is due to this fact to be feared.
Take away areas the place water stagnates
Smaller, diurnal and fewer cell than the native mosquito, the tiger mosquito doesn’t curiosity the same old predators of the species, bats, frogs and dragonflies. As soon as put in, it’s due to this fact troublesome to dislodge it. “We all know we won’t eradicate his presence“warns Baptiste Groff. The one resolution to stem its proliferation relies on good particular person reflexes.
The ARS encourages specifically to manage rainwater collectors, as a result of even when they’re geared up with a canopy, mosquitoes can enter and exit by means of the gutter to breed there. It’s also strongly really helpful to remove all locations the place water can stagnate. Placing sand within the saucers of pots, for instance, permits the plant to proceed to attract water however prevents the mosquito from laying eggs there. Water reservoirs (cans, cisterns, basins and swimming swimming pools not in use) should even be coated.
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