COVID-19: epidemiological update. Weekly report. Week 21. 31 May 2023.

Points clés

In week 21, the virological indicators (based on SI-DEP data) stabilised within a context of very low screening rates. Emergency department visits also stabilised and new hospital admissions continued to drop.

  • Metropolitan France:

    • Incidence and positivity rate increased slightly or remained stable in most age groups and regions

    • Hospital admission rates were down in the majority of regions.

  • Overseas France:

    • Incidence rates fell in most regions

    • New hospital admissions remained low

Variants

  • The XBB.1.5 recombinant remained predominant but appeared to fall with 45% of sequences in the Flash Surveyfor week 19*** (vs 47% for the Flash Survey of week 18).

  • XBB.1.16 increased (6% for the week 19*** Flash Survey vs3% for the week 18 Flash Survey)

  • XBB.1.9 stabilised (28% for the week 19*** Flash Survey vs 29% for the week 18 Flash Survey)

Prevention

  • Vaccination on 29 May 2023 (Vaccin Covid data):

    • 23.9% of people aged 60-79 and 27.0% of people aged 80+ had received a booster vaccination for the Omicron variant

  • Within the current context of the pandemic and the spring vaccination campaign, observance of combined measures is still recommended:

    • updated COVID-19 vaccination, with a booster shot for eligible individuals who have received a primary vaccine series;

    • continued application of protective measures, especially in the event of a positive COVID-19 test and/or symptoms, in order to protect vulnerable individuals.

***Data from the week 19 Flash Survey are not consolidated and should be interpreted with caution.

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