COVID-19: epidemiological update. Weekly report. Week 22. 9 June 2022.

Publié le 10 juin 2022
Mis à jour le 10 juin 2022

Key points

In week 22, the virological indicators increased after declining for several weeks, although hospital indicators continued to fall nationally. Incidence and positivity rates remained particularly high in Martinique.

  • Metropolitan France:
    • Incidence and positivity rates rising in the majority of regions
    • Less striking reduction in the hospitalisation rate
  • Overseas France:
    • Virological indicators very high and rising in Martinique
    • Renewed increase in the incidence rate in French Guiana confirmed

Variants

  • Omicron BA.2 sub-lineage dominant: 80% of interpretable sequences in the week 21 Flash Survey (23 May)
  • Detection of BA.4 (1.1%) and BA.5 (18.0%) on the rise according to the week 21 Flash Survey
  • Increased presence of the mutation in L452 position in screening (27% in week 22), in connection with the increase in certain Omicron sub-lineages, including BA.4 and BA.5.

Prevention

  • Vaccination on 6 June 2022 (Vaccin Covid data):
    • Vaccination coverage for the booster shot reached 74.4% among adults over 18 years of age and 84.3% in the 65+ age group.
    • Only 31.0% of 60-79 year-olds and 28.4% of those aged 80 and over eligible for the second booster shot have actually received it.
  • CoviPrev Survey wave 34 (9-16 May 2022)
    • Continued decline in the regular use of preventive measures, particularly wearing masks
  • With the increasing circulation of SARS-CoV-2, adopting combined measures is essential, particularly to protect the most vulnerable populations:
    • It remains important to self-isolate in the event of symptoms or a positive test for COVID-19
    • It is crucial to apply individual precautions against infection, including wearing a mask (especially in closed areas, at large gatherings or around vulnerable people), hand washing and frequent ventilation of enclosed spaces