Key Points

Bronchiolitis in Children Under 1 Year of Age 

• No outbreak in the Pays de la Loire region. 

Influenza and flu-like illness 

• No outbreak in the Pays de la Loire region. 

COVID-19 

• Healthcare utilization indicators are low, below those observed during the previous two winters. 

Acute gastroenteritis 

• Healthcare utilization (SOS Médecins calls and emergency department visits) for acute gastroenteritis remained stable at low levels of activity. 

Chikungunya, Dengue, Zika

• Since May 1, 2026: 30 imported cases of dengue, 3 imported cases of chikungunya, and 1 imported case of Zika have been reported in the Pays de la Loire region.