COVID-19: Epidemiological Update for March 29, 2023

Key Points

In Week 12, incidence and positivity rates (based on SI-DEP virological data) as well as indicators of outpatient and emergency department visits continued to rise, but at a slower pace than the previous week. New hospitalizations were on the decline.

  • Mainland France:

    • Incidence and positivity rates rising in most age groups and regions

    • Hospitalization rates decreasing or stable in most regions

  • Overseas territories:

    • Incidence and hospitalization rates remain at very low levels

Variants

  • The XBB.1.5 recombinant was the dominant variant, accounting for 59% of sequences in the Flash 10 survey (vs. 55% in Flash S09)

  • BA.5 and its sublineages continued to decline (17% for Flash S10 vs. 21% for Flash S09)

Prevention

  • Vaccination as of March 27, 2023 (Covid Vaccine data):

    • 23.3% of those aged 60–79 and 26.0% of those aged 80 and older had received a booster tailored to the Omicron variant

    • 25.0% of those aged 60–79 and 7.1% of those aged 80 and older had received a dose administered less than 6 and 3 months ago, respectively.

  • Given the current situation of ongoing SARS-CoV-2 circulation, it remains recommended to continue adhering to the following combined measures:

    • up-to-date COVID-19 vaccination, including a booster dose with a bivalent vaccine (against the original strain and the Omicron variant) for those eligible who have received their primary series;

    • continued adherence to preventive measures, particularly in the event of a positive test result and/or symptoms.

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