Figure 3.

Suspected variants in possible cases of SARS-CoV-2 reinfection, by week of sampling, mainland France, January 2021–February 2022 (n = 302,604)

COVID-19: coronavirus disease; SARS-CoV-2: severe acute respiratory syndrome coronavirus 2.

SARS-CoV-2 mutation screening results were available in both first and second episodes for 59,760 possible cases of reinfection. Panel C displays weekly proportions of suspected Omicron infections among possible reinfections (dots and 95% binomial proportion confidence intervals) and among all confirmed SARS-CoV-2 infections (line).