Epidemiological Situation

Since the beginning of 2018, 6,476 biologically confirmed or probable cases of dengue (including 5 imported from Polynesia, Brazil, and Thailand) have been reported by private and hospital laboratories in Réunion. The only serotype identified in 2018 among indigenous cases is DENV-2 (911 genotypes analyzed). This situation follows an unusual, low-level viral circulation during 2017, when persistent transmission was observed during the southern winter.

In week S2018-32 (data from August 6 to 12):

• 32 probable or confirmed cases of dengue were diagnosed through laboratory testing, based on the date of symptom onset.

• Confirmed and probable cases were mainly located: - In the west: La Possession (6 cases), Bois de Nèfles and La Plaine (3 cases), St-Leu (3 cases), St-Paul, Gare routière, and Etang (2 cases), Le Port (2 cases), St-Gilles-les-Bains, St-Gilles-les-Hauts and Les 3 Bassins (1 case each), - In the south: L'Etang Salé (1 case), St-Louis (2 cases), Le Tampon (1 case), St-Pierre (5 cases), and St Philippe (2 cases),

• In St-Denis (1 case) and Ste Marie (1 case)