Cross-protective immunity induced by omicron variant of SARS-CoV-2

Abstract

The newly discovered SARS-CoV-2 Omicron (B.1.1.529) variant is the most antigenically unique SARS-CoV-2 variant of concern to date, which is presently prevalent across most of the world. According to a number of studies, the Omicron variant causes a restricted immune response after infection. A critical component of study is determining the efficacy of Omicron-induced immunity and if it is cross-protective against other variants.