Dengue outbreak in Réunion: more than 5,300 confirmed cases in the north, west, and south of the island since January 1, 2018

A dengue outbreak is currently affecting western and southern Réunion. Following an unusual circulation of the virus during the 2017 southern hemisphere winter, the number of dengue cases has gradually increased since the beginning of 2018, with a spike in February. Santé publique France has released an update on the situation and is reminding the public of the preventive measures to take.

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On March 26, 2018, the Prefect of Réunion declared a "low-intensity epidemic" under the ORSEC system for combating arboviral diseases. The Indian Ocean Regional Response Unit conducts epidemiological surveillance of dengue on the island of Réunion and publishes the data weekly in an epidemiological bulletin. The current outbreak could continue to intensify in the coming weeks. Indeed, the population is not immune to dengue (only 3.1% of blood donors tested for dengue in 2008 had antibodies against the virus), and current weather conditions are conducive to the development of vectors.

Epidemiological situation as of June 26, 2018:

  • 5,393 biologically confirmed or probable cases reported since January 1, 2018

  • 309 biologically confirmed and probable cases in one week

  • Predominance of DENV-2 serotype

  • 112 cases hospitalized since the beginning of 2018

  • 13 severe dengue cases

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Learn more: Dengue epidemiological update for Réunion, June 26, 2018

Reminders of preventive measures everyone should take

  • Eliminate containers of water around your home and waste that promotes larval breeding sites (empty saucers and small containers, follow the scheduled waste collection days…)

  • Protect yourself from mosquito bites (using repellents, wearing protective clothing, using mosquito nets, etc.)

  • Consult your doctor if symptoms of the disease appear and continue to protect yourself from mosquito bites.

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