The editorial staff of Europe 1 11:36 a.m., February 22, 2022

The number of people reinfected with Covid-19 has exploded since December 1.

We speak of reinfection when a person has tested positive two months apart.

While 416,995 possible cases of reinfection were identified between March 2021 and January 2022, the vast majority of reinfections took place with the arrival of the Omicron wave.