Covid, unconscious infections: with Omicron more than 1 in 2 do not know they are infected

Sars-CoV-2 infection can also remain “invisible”. That is, it can affect some people without causing symptoms. A probability that, in addition to making prevention measures more complex, has been growing with the spread of vaccination and with the evolution of variants. The possibility of being confronted with a positive without symptoms has in fact increased significantly with the arrival of Omicron.