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According to French public health authorities, there have been 47 500 confirmed cases of chikungunya in Reunion from 1 January 2025 to 4 May 2025.
Chikungunya is a viral infection spread by mosquito bites and can cause acute fever and severe joint pain. Severe illness can occur. Two new chikungunya vaccines have recently been licensed for use in the UK.
Travellers to affected areas are potentially at risk of chikungunya and should be aware of this infection. Aedes mosquitoes are particularly persistent and aggressive. They bite between dawn and dusk.
Travellers developing a fever during or on return from travel are advised to seek medical attention as soon as possible.
For further information see TRAVAX chikungunya page.
