Key points

Smallpox B (Mpox)

• 8 cases (including 4 imported cases) were reported in Réunion between S05 and S13/2026.

Leptospirosis

• The ongoing seasonal resurgence of leptospirosis continues at a high level: 159 cases in 2026.

Dengue and Chikungunya

• 28 cases of chikungunya and 109 cases of locally acquired dengue have been detected since the beginning of the year, with several clusters of dengue cases observed in Saint-Leu as well as in various neighborhoods of Saint-Paul.

Influenza and Flu-Like Illness

• A continuous increase in health indicators over the past 3 weeks, with no significant health impact.

Bronchiolitis in children under 2

• Visits to emergency rooms are on the rise.

COVID-19

• Health and virological indicators are declining.

Gastroenteritis

• Increase in emergency room visits among children under 5