Influenza Epidemiological Bulletin, Week 50. 2020–2021 Season.

Key Points

  • Mainland France

    • Influenza surveillance since Week 40.

    • No active circulation of influenza viruses identified by dedicated surveillance networks; only 10 influenza viruses detected (9 in hospitals and 1 by the Sentinelles network of physicians) in various regions, including at least 2 in individuals returning from travel abroad.

  • Overseas

    • No influenza viruses detected by dedicated surveillance networks in recent weeks.

  • Flu Vaccination Coverage

    • Increase in vaccination coverage among at-risk individuals compared to the 2019-2020 season: initial estimates as of 10/31/2020 = 34.2% versus 19.0%.

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