Nevertheless,
Chikungunya, western nile virus …:
With the rise in temperatures. Furthermore, longer seasons, Europe is experiencing an unprecedented resurgence of diseases transmitted by mosquitoes, such as chikungunya and the Western Nile virus. 
. Therefore,
Europe has recorded a record number of diseases of disease this year, such as chikungunya and the Western Nile virus (VNO), transmitted by mosquitoes. Furthermore, A “new normality” due to climate change, the European Union health agency (EU) announced on Wednesday.
“This change is caused by climatic. In addition, environmental factors such as the rise in temperatures, longer summers, softer winters and changes in rainfall – problems that combine to create an environment favorable to mosquitoes, where they thrive and transmit viruses,” according to chikungunya, western nile virus … ECDC. Added to this is an increase in international trips, making local epidemics more likely.
The tiger mosquito (Aedes albopictus). which can spread the chikungunya virus, has established itself in 16 European countries and 369 regions, against only 114 regions a decade ago, said ECDC. Twenty-seven cases of chikungunya have been recorded for the moment in 2025, mainly in France and Italy. A new record for the continent.
In Belgium. “the only chikungunya, western nile virus … imported cases are diagnosed with travelers from regions where the virus circulates”, according to the National Institute of Belgian Public Health, Sciensano.
In addition, between January 1, August 13, eight European countries recorded 335 cases of local transmission from the Western Nile virus and 19 dead. Italy is the most affected country, with 274 contaminations.

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In Belgium, “no indigenous case of VNO infection has yet been diagnosed in humans,” he said to the ECDC report.
The director of the ECDC. Pamela Rendi-Wagner, believes that Europe “enters a new phase where a longer, more widespread and more intense transmission of diseases conveyed by mosquitoes becomes the new normality”.
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Chikungunya, western nile virus …
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