Detection of BA.4 (1.1%) and BA.5 (18.0%) on the rise according to the week 21 Flash Survey in France.
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.
