Influenza Epidemiological Bulletin, Week 52. 2021–2022 Season.

Key points

  • In mainland France:

    • Continued increase in flu activity in most regions

    • The Auvergne-Rhône-Alpes region has entered the epidemic phase, while the Normandy and Burgundy-Franche-Comté regions are in the pre-epidemic phase

    • Increase in most flu indicators among adults

  • In the Overseas Territories:

    • Réunion and Mayotte remain in the epidemic phase

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