Key Points Bronchiolitis in children under 1 year of age No outbreak in the Pays de la Loire region. Indicators are stable or declining. Low levels. Influenza and flu-like illness No...

Key points Bronchiolitis Alert Level: No epidemic. Healthcare utilization: Low activity. Activity slightly increasing in emergency departments and decreasing in community...

Key Points Dengue Over the past two weeks, dengue activity in the territory remained low, with 6 confirmed cases (4 in S42 and 2 in S41), including 3 residing in the Western Coast, 1...

Key points Acute respiratory infections Early and sustained activity of lower respiratory tract infections (LRTI) beginning in November 2024, with high activity observed in January,...

Key points Measles Four locally acquired cases identified in 2025. No new cases in the past two weeks. Arboviruses Chikungunya is circulating on a very limited scale (4 cases in week...

Key Points COVID-19 The epidemic wave continues its downward trend among people under 65. Among those aged 65 and older, the peak has passed. Healthcare utilization indicators are...

Key points Bronchiolitis Increase in all indicators among children under 1 year of age COVID-19 Declining viral circulation Flu Low activity levels across all indicators

Key Points Acute respiratory infections (ARI) Activity remains generally stable in the city and at the hospital. Influenza All indicators at baseline levels across all regions. End of...

Key points Acute respiratory infections Decreased activity in hospital emergency departments and stable at SOS Médecins Bronchiolitis ( 1 year) Decreased activity in hospital emergency...

Key Points Chikungunya, dengue, Zika 8 episodes of local transmission detected Six episodes of local transmission of chikungunya identified in the region as of October 21, 2025,...