Health Monitoring in the Île-de-France Region. Bulletin of December 3, 2025.
Key Points
Chikungunya, dengue, Zika
Imported cases:
255 dengue
208 chikungunya
1 Zika
Local cases:
2 chikungunya
West Nile virus infections
24 confirmed local human cases of West Nile
Bronchiolitis
Epidemic level: Bronchiolitis activity levels stabilized in week 48, reaching a level comparable to those observed last season. Île-de-France has been on epidemic alert for the sixth week.
Influenza and influenza-like illness
Elevation to epidemic alert level in Île-de-France for week 48.
COVID-19
SOS Médecins: The number of cases involving suspected COVID-19 remained stable in week 48 across all age groups. Case numbers remained low, particularly among children under 15 and adults aged 65 and older.
Emergency room visits: The number of emergency room visits for suspected COVID-19 remained stable in week 48 across all age groups. Case numbers remained low.
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