Epidemiological Situation

Since the beginning of 2018, 6,382 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 S2018-30 (July 23–29):

• 26 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 (1 case), St-Paul, Gare routière and Etang (3 cases), Le Port (5 cases), La Possession (4 cases), St-Gilles-les-Bains (3 cases), St-Gilles-les-Hauts (1 case), and St-Leu (4 cases), - In the south: Entre-Deux (1 case), St-Louis (1 case), Le Tampon (1 case), St-Joseph (1 case), and St-Philippe (1 case).