Health Surveillance in the Pays de la Loire Region. Bulletin of January 22, 2026.

Key Points

Influenza and Flu-Like Illness

  • Influenza outbreak in the Pays de la Loire region since week 49.

  • Indicators are declining among adults and rising among children. Moderate levels.

Bronchiolitis in children under 1 year of age

  • End of the bronchiolitis epidemic in the Pays de la Loire region since week 03.

  • Indicators are declining. Low levels.

COVID-19

  • Indicators stable.

  • Low levels.

Acute gastroenteritis

  • Indicators stable or rising.

  • Moderate levels.

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