Key points

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

• Metropolitan France:

  • Incidence and positivity rates rising in most regions

  • Less pronounced reduction in the hospitalization 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 sublineage dominant: 80% of interpretable sequences in the Week 21 Flash Survey (May 23)

• 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 L452 mutation in screening (27% in week 22), linked to the rise in certain Omicron sublineages, including BA.4 and BA.5.

Prevention

• Vaccination as of June 6, 2022 (COVID-19 vaccine 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 people aged 60–79 and 28.4% of those aged 80 and older eligible for the second booster shot have actually received it.

• CoviPrev Survey Wave 34 (May 9–16, 2022)

  • Continued decline in the regular use of preventive measures, particularly mask-wearing

• 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 if you have symptoms or test positive for COVID-19

  • It is crucial to take individual precautions against infection, including wearing a mask (especially in enclosed spaces, at large gatherings, or around vulnerable people), hand washing, and frequent ventilation of enclosed spaces