Health Monitoring in the Pays de la Loire Region. Bulletin of December 11, 2025.

Key Points

Bronchiolitis in children under 1 year of age

  • Bronchiolitis outbreak in the Pays de la Loire region since week 47.

  • Indicators are declining. Moderate levels.

Influenza and influenza-like illness

  • Start of the influenza epidemic in the Pays de la Loire region in week 49.

  • Indicators on the rise. Low to moderate levels.

COVID-19

  • Indicators stable. Low levels.

Acute gastroenteritis

  • Indicators stable or rising. Low to moderate levels.

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