Epidemiological Situation

Since the beginning of 2018, 6,152 biologically confirmed or probable cases of dengue (including 3 imported from the Maldives, Polynesia, and Brazil) have been reported by private and hospital laboratories in Réunion. The only serotype identified in 2018 is DENV-2 (910 typing tests performed). This situation follows an unusual, low-level viral circulation during 2017, when persistent transmission was observed during the southern winter.

In week S2018-27 (July 2–8):

• 119 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: Bois de Nèfles and La Plaine (12 cases), St-Paul, Gare routière and Etang (14 cases), Le Port (21 cases), La Possession (18 cases), St-Gilles-les-Bains (9 cases), St-Leu (3 cases), St-Gilles-les-Hauts (5 cases), - In the south: Ravine des Cabris (5 cases), St-Pierre (4 cases), Etang Salé (3 cases), St Louis (5 cases), Le Tampon (4 cases), Les Avirons (3 cases), Saint-Joseph (1 case), and St Philippe (1 case).- In the north: St-Denis city (3 cases), La Montagne (1 case), Ste-Clotilde (2 cases), Ste-Marie (1 case).