Key Points

• Since August 17, 2023, leptospirosis has been officially included on the list of reportable diseases (Official Journal).

• In 2024, 26 cases were reported among residents of Normandy, including 20 confirmed cases and 6 probable cases.

• The cases were primarily men, with a median age of 60.

• The Manche department is the most affected in Normandy, with 11 reported cases, representing an incidence rate of 2.2 per 100,000 inhabitants.

• The most frequently reported risk exposure was contact with an animal, primarily with rodents (n=13).

• Nearly all cases were hospitalized, with a significant proportion requiring admission to the intensive care unit. This underscores the potential severity of this zoonosis. No deaths were reported in Normandy in 2024.

• Leptospirosis cases are reported to the ARS within a median of 16 days; awareness campaigns will be implemented to remind healthcare professionals of the importance of considering a diagnosis of leptospirosis and promptly reporting cases.