Key Points

• As of June 8, 2025, 183 PCR-confirmed cases of leptospirosis have been reported since January 1, 2025.

• The incidence rate for the period is 57 cases per 100,000 inhabitants.

• The epidemic peak occurred late in S19-2025, with a broader spread of cases from February through the end of May.

• Since week 22, reported cases have been declining sharply, suggesting the end of the seasonal leptospirosis epidemic, consistent with the pattern of previous years.

• Possible impact of Cyclone Chido and Tropical Storm Dikeledi on the dynamics of the 2025 epidemic.

• Possible impact of the chikungunya epidemic on the diagnosis of leptospirosis.