Key points Gastroenteritis High activity, particularly affecting children. Increase in the number of emergency room visits among children under 5 years of age. Decrease in the number of...

Key Points Arboviral diseases (chikungunya, dengue, and Zika) Enhanced surveillance begins on May 1 Allergies Increased activity at SOS Médecins Asthma Activity slightly on the...

Key Points A total of 116 confirmed cases of chikungunya were recorded between S10 and S18-2025, including 57 locally acquired cases, 29 imported cases, and 30 cases of unknown status...

Key Points Chikungunya Surveillance indicators for emergency department and outpatient activity began to decline. This trend is expected to be confirmed in the coming weeks due to a...

Key Points Number of imported cases documented during enhanced surveillance in 2024 568 Dengue 12 Chikungunya 3 Zika 1 Co-infection (dengue + chikungunya) First case of locally...

Key Points Surveillance indicators in emergency departments and primary care settings were beginning to decline. This trend is expected to be confirmed in the coming weeks due to a...

Key points Bronchiolitis Outside of an epidemic Stable activity in hospital emergency departments and at SOS Médecins Flu, flu-like syndrome Outside of an epidemic Stable activity in...

Key Points Chikungunya, dengue, and Zika Enhanced surveillance in mainland France began on May 1. The current chikungunya outbreak in Réunion and the dengue outbreak in Guadeloupe are...

Key Points Chikungunya, dengue, and Zika Significant impact of the chikungunya outbreak in Réunion and the dengue outbreak in Guadeloupe on surveillance in mainland France. Since the...

Key Points In Week 18 (April 28–May 4, 2025), which coincided with the start of the school year for Zone C, emergency department visits and subsequent hospitalizations were on the rise...