Skip to main content
04 Jun 2024 | 07:56 AM UTC

Réunion: Elevated dengue fever activity reported in multiple areas in early June

Elevated dengue fever activity reported in multiple areas in Réunion in early June. Avoid mosquito bites.

Informational

Health authorities have reported elevated dengue fever activity in multiple areas in Réunion, with 1,065 total cases reported Jan. 1-May 26. This is compared to the 121 cases reported during a similar period in 2023. The South is most affected, followed by the West, with elevated disease activity mainly reported in Saint Joseph, Le Tampon, Petite Ile, Saint Leu, and Saint Paul. This report represents the most complete data available as of June 4.

If you have previously been infected with dengue fever, consult with your physician regarding vaccination. Avoid mosquito bites and remove standing water to reduce the number of biting mosquitoes. Seek medical attention if symptoms develop within two weeks of being in affected areas. Do not use aspirin or ibuprofen products if dengue fever is suspected, as these could exacerbate bleeding tendencies associated with the disease.

Dengue is endemic year-round in Réunion, with peak transmission occurring during the rainy season, from February to July. There are two dengue fever vaccines, Dengvaxia and Qdenga. It is only recommended for individuals with a history of dengue infection and in a country with a high dengue fever burden. Dengue fever is transmitted through the bite of an infected mosquito. The risk of infection is often highest in urban and semi-urban areas. Symptoms of dengue fever include a sudden onset of fever and at least one of the following: severe headache, severe pain behind the eyes, muscle and/or joint pain, rash, easy bruising, and/or nose or gum bleeding. Symptoms typically appear 5-7 days after being bitten but can develop up to 10 days after exposure. Dengue fever can progress to a more severe form known as dengue hemorrhagic fever (DHF). DHF can be fatal if it is not recognized and treated in a timely manner.