Key Points

Chikungunya

• Since August 23, 2024, 8,749 cases of chikungunya have been reported on the island, including 8,600 in 2025.

• The outbreak continues to spread, with more than 2,800 cases detected in S10.

• The southern municipalities, including Le Tampon, continue to report the highest number of cases, but the outbreak has now spread across the entire island and is progressing everywhere.

Dengue

• Since the beginning of the year, the spread of dengue has remained limited.