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The Puerto Rican Department of Health have reported (in Spanish) an increase in dengue fever cases following Hurricane Fiona which hit Puerto Rico in mid September 2022 resulting in heavy rainfall and flooding.
So far in 2022, 340 cases of dengue have been confirmed in Puerto Rico, of which 57 were reported between 10 September to 7 October. Only 17 cases were reported during the same period in 2021.
Dengue is an infection found in tropical and sub-tropical climates worldwide. It is spread by Aedes mosquito bites and can cause a severe flu-like illness.
There is no vaccine against dengue licensed in the UK. Treatment is supportive only.
All travellers to endemic regions are potentially at risk of dengue fever 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 dengue fever page.
