The Covid-19 contamination records have been linked in recent days, under the effect of the Omicron variant. In many departments, it has already become the majority.
To determine if a particular variant is the cause of a positive case, scientists analyze the test and proceed to a screening. It should make it possible to reveal the presence of three mutations: E484K, present in Beta and Gamma variants, E484Q, which remains very rare, and L452R, which is found including many variants, particularly Delta.
In the absence of the latter mutation, which means the variant is unknown, Omicron is highly suspected. As of December 29, 23 departments showed a proportion of suspicion of Omicron of 50% and more, according to figures from Public Health France listed by CovidTracker.
Mayotte (77, 19%)
Note that data is lacking in several departments: Ain, Cantal, Creuse, Haute-Loire, Haute-Marne, Hautes-Alpes, Maine-et-Loire, Indre, Lot-et-Garonne, Lozère, Vaucluse, Vendée, Vienne.