Key Points

• The number of clinically suggestive cases continues to decline (564 and 330 in S25 and S26, respectively); more than 47,000 clinically suggestive cases since the beginning of 2019.

• The number of confirmed cases continues the decline that began in mid-May: Week 25 = 151 and Week 26 = 103 confirmed cases (unconsolidated data). More than 17,000 cases have been confirmed since the beginning of 2019.

• However, nearly all of the island’s municipalities (20 out of 24) remain affected by viral circulation.

• St. Pierre remains the largest cluster (16% of cases), followed by St. Leu (15% of cases).

• St. Joseph, Etang-Salé, and St. Paul are seeing their proportion of cases rise again.

• Among locally acquired cases, the DENV1 serotype has now been identified across the entire island.

• Vigilance remains essential regarding differential diagnoses, particularly for measles, as new cases continue to be diagnosed regularly (46 cases reported since April, including 3 in S26).