Impact of the Omicron variant on SARS-CoV-2 reinfections in France, March 2021 to February 2022

Publié le 19 mai 2022
Mis à jour le 18 mai 2022

Since the first reports in summer 2020, SARS-CoV-2 reinfections have raised concerns about the immunogenicity of the virus, which will affect SARS-CoV-2 epidemiology and possibly the burden of COVID-19 on our societies in the future. This study provides data on the frequency and characteristics of possible reinfections, using the French national COVID-19 testing database. The Omicron variant had a large impact on the frequency of possible reinfections in France, which represented 3.8% of all confirmed COVID-19 cases since December 2021.

Auteur : Bastard Jonathan, Taisne Benjamin, Figoni Julie, Mailles Alexandra, Durand Julien, Fayad Myriam, Josset Laurence, Maisa Anna, van der Werf Sylvie, Parent du Châtelet Isabelle, Bernard-Stoecklin Sibylle
Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin, 2022, vol. 27, n°. 13