Actors in vector control and prevention remain mobilized

The transmission of the disease is slowing down and the number of cases recorded since the beginning of 2022 remains much lower than in previous years (933 cases so far compared to 8,105 cases in 2021 over the same period).

Although dengue fever circulation was maintained throughout the Australian winter, vector control and sanitation measures related to weather conditions less favorable for mosquito development (cyclones and heavy rains that eliminated the larvae) and the immunity that may have been acquired in certain parts of the city has made it possible to greatly reduce the transmission of the virus.

Despite everything, we must remain mobilized and cautious to limit the emergence of a new wave of the epidemic.

Fighting dengue fever is everyone’s business. Reunionese are encouraged to continue prevention: remove at home everything that could contain water, protect yourself from mosquitoes (repellents, mosquito nets) and seek immediate medical attention at the first symptoms.

Dengue fever situation on April 26, 2022 (Public Health data France Réunion, ARS)

Since January 1, 2022

933 confirmed cases

9 hospitalizations

86 emergency visits

The number of weekly cases has remained stable over the past two weeks, but emergency room visits for dengue fever are increasing. The situation still corresponds to a period between epidemics. In the period under review, cases of dengue fever were reported in 18 communities:

– South (50.4% of cases): Saint-Pierre, Saint-Louis, Saint-Joseph, Le Tampon, Petite-Île, Entre-Deux, Étang-Salé, Sainte-Rose, Les Avirons

– West (30.1% of cases): Saint-Paul, Saint-Leu, La Possession, Le Port

– North (12.2% of cases): Saint-Denis, Sainte-Marie, Sainte-Suzanne

– East (7.3% of cases): Saint-Benoît, Saint-André

In addition, groups have been identified in the following districts:

– In Saint-Joseph: Le Guava

– In Saint-Pierre: Holy Land

– In Saint-Louis: The river

– In Saint-Leu: Cayenne

Dengue serotype 1 has been circulating on the island since 2021.

Recommendations for protection against mosquito bites and dengue fever

· Protect yourself, also in the 7 days after the onset of symptoms, to protect those around you (repellent, mosquito net, etc.); Keep protecting yourself even if you’ve had dengue fever before; multiple dengue serotypes can circulate and infection with one serotype does not protect against attack by another serotype.

Eliminate and drain stagnant water that can be breeding grounds for mosquitoes: anything that may contain water in and around your home…

· See a doctor at the first symptoms: fever, headache, muscle/joint pain, nausea, vomiting… and take the sample at the medical analysis laboratory prescribed by your doctor to confirm the diagnosis of dengue fever.

If you have dengue fever:
– Continue to protect yourself from mosquito bites to avoid spreading the disease to those around you and monitor your health status, especially between the 4th and 8th day of illness,
– Consult your doctor or emergency services if your health deteriorates.

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