With sunny days, the tiger mosquito is back

Currently, more than sixty departments are on red alert for the tiger mosquito. The list could grow in the coming weeks with the current heat wave.

With the arrival of fine weather and heat, the scourge is likely to worsen even more. As indicated by a new update this Wednesday of a vigilance map distributed by the site Mosquito vigilance, 64 departments of metropolitan France, or 67% of the territory, are still placed on red alert for the tiger mosquito. An alert level which means that the insect, easily identifiable by its characteristic spots, is declared, established and active.

“A heat wave immediately leads to a phenomenon of multiplication and proliferation. We normally say that a tiger mosquito takes ten days to transform from larva to adult mosquito if it is 23°C during the day and 15°C during the day. C at night. But there when it’s 30 degrees during the day, it’s more than ten days, it’s six/seven days! It goes much faster”, assures Stéphane Robert, president of the Vigilance moustiques site, withEurope1.

The heat wave affecting France these days should thus facilitate its proliferation.

The vigilance map of the tiger mosquito in metropolitan France
The vigilance map of the tiger mosquito in metropolitan France © Vigilance Moustique

In addition, 28 departments are still placed on orange alert, synonymous with occasional interception of the Aedes type mosquito, but their situation could change in the weeks to come. “Indeed, we observe that the departments which are in orange vigilance sooner or later switch to red vigilance”, we learn on the same site. 28 departments remain for the time being in yellow vigilance, which corresponds to entomological monitoring of the situation.

It should be noted that Mayotte, Réunion, Guyana, Guadeloupe and Martinique are all five placed in a special category by Vigilance Moustiques since on these five overseas territories, cases of disease have been declared.

Increased vigilance

At the beginning of May, the Ministry of Solidarity and Health warned of the growing presence of the tiger mosquito in France and recalled that it is responsible for many diseases such as Chikungunya, dengue, or zika again.

If it is specified in this press release to “avoid being bitten by a mosquito” and to “stay vigilant”, in particular on the sidelines of a trip to a red zone, it is also advisable, in the event of joint pain , muscle aches, headaches, skin rash with or without fever, conjunctivitis, consult a doctor as soon as possible.

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