2023-07-12 15:08:00
Emerging virus
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In a study published on Tuesday July 11, Public Health France warns of the ever more active circulation of the virus transmitted by mosquito bites. For the moment, no serious case has occurred in France, but the health authorities are preparing to deal with it.
The phenomenon was expected, it was nonetheless “exceptional” for Public Health France. In 2022, dengue fever transmissions continued to spread in mainland France: 378 cases were reported, including 66 autochthonous (i.e. infections via tiger mosquitoes on the territory and not abroad) , according to a study published by the health agency on Tuesday, July 11. In one year, the number of autochthonous cases exceeded the 48 observed over a decade, between 2010 and 2021. As a consequence, in particular, of the mixing of populations around the world and of climate change which promotes the expansion of the main vectors of the disease : tiger mosquitoes. These are now located in 71 of the 96 metropolitan departments, compared to 67 on January 1, 2022; the number of departments affected has multiplied by 10 since 2010.
“Three factors made us give the alert, specifies Clémentine Calba, epidemiologist at SPF and co-author of the study published on Tuesday. The high intensity of the transmission episodes, their greater earliness – from June, whereas they usually start in July – and their geographical extent. Five out of nine episodes occurred in
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