Key Points Chikungunya, Dengue, and Zika Since May 1, 2026, 92 imported cases of dengue, 19 imported cases of chikungunya, and 1 imported case of Zika have been identified and...

Key Points  Extreme heat, heat wave  No heat wave episodes have been observed in the region since August 17, 2026 (end of the fourth episode). Healthcare utilization indicators have...

Key Points Several Outbreaks of Local Transmission Detected In Nouvelle-Aquitaine, 37 locally acquired cases of chikungunya, spread across six transmission outbreaks, had been...

Key Points In 2025, in France, 1,989 cases of Legionnaires' disease were reported to Santé publique France, with: an overall stable number of cases compared to 2024 (+50 cases,...

Key Points Smallpox B (mpox) 24 imported cases from Madagascar and 5 locally acquired cases. Secondary spread from the imported cases has been contained, and local transmission...

Legionellosis is a major public health concern. It is monitored epidemiologically by Santé publique France.

View data on the epidemiological situation of Legionnaires' disease in France on Santé publique France.

Legionellosis is caused by the Legionella bacterium. It begins with flu-like symptoms accompanied by fever, which progress to pneumonia. Prompt and appropriate treatment leads to a favorable outcome.

Legionellosis is a lung infection caused by the Legionella bacterium. It is a notifiable disease monitored by Santé publique France.