Acute respiratory infections (influenza, bronchiolitis, COVID-19). Bulletin dated March 19, 2025.

Key Points

Acute respiratory infections (ARI)

  • Indicators are declining across all age groups, with low activity levels.

Influenza

  • Influenza indicators continue to decline across all age groups in mainland France. All regions in mainland France are in the post-epidemic phase. The French West Indies, French Guiana, and Mayotte remain in the epidemic phase.

Bronchiolitis

  • Syndromic indicators at their baseline levels nationwide. Positivity rates are low but higher than those of the previous season. Corsica is in the post-epidemic phase, and Mayotte remains in the epidemic phase.

COVID-19

  • Activity generally stable at low levels.

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