Global Data
Dengue fever is found primarily in the intertropical regions, including Africa, Central and South America, the Caribbean, as well as Southeast Asia and the Pacific.
Over the past few decades, the incidence of dengue has risen dramatically worldwide, from 505,430 cases reported to the WHO in 2000 to 14.6 million in 2024. Currently, according to the WHO, nearly half of the world’s population is at risk, with an estimated 100 to 400 million infections annually.
The global circulation of the dengue virus leads to the potential return of viremic patients to mainland France, particularly in departments where Aedes albopictus is established. These viremic individuals can be bitten by Aedes albopictus and thus trigger a local transmission cycle.
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