What is this autochthonous case of arbovirus discovered in Landes?

He will remain as the first autochthonous case of arbovirosis in New Aquitaine. The ARS (Regional Health Agency) states this Friday that a patient in Landes contracted an arbovirus-type illness on October 7th, which was only confirmed on October 18th.

Arbovirosis is precisely a type of viral disease, which can be dengue fever, zika virus or west nile virus, but in this case we do not yet know which it is. These diseases are transmitted by the tiger mosquito, or culex mosquito in the case of West Nile, generally in the intertropical zone. But this time the person who contracted the disease had not traveled, so we are talking about a native case.

No risk of “endemisation”

“The patient therefore contracted the disease locally after being bitten by a mosquito that had itself caught it by biting a person suffering from dengue fever or Zyka who was returning from the intertropical zone”, explains Fabienne Jouanthoua, manager of Poland. environment at ARS Gironde. The disease manifests itself in flu-like syndromes, “and the patient feels good,” she specifies.

Treatments against mosquitoes will be carried out overnight from Friday to Saturday in perimeters of 150 meters, in Biscarrosse and Parentis in Landes and Bordeaux, Le Pian-Médoc and Le Bouscat in Gironde, where the patient had moved, with the aim of “removing the chain of transmission “.

ARS believes that there is no reason to fear “endemisation” in the region. “Unlike the intertropical zone, we are lucky to have a winter, a period when the mosquitoes disappear. The tiger mosquito dies and overwinters as an egg, while the culex goes dormant. Winter thus makes it possible to cut all the transmission chains: the counters are reset and disease-free populations arrive in the spring. “The fact is that it is necessary to destroy all the breeding grounds around your home.

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