Association of SARS-CoV-2 BA.4/BA.5 Omicron lineages with immune escape and clinical outcome

Abstract

Continuous monitoring of SARS-CoV-2 variant properties is important for public health planning. Here, the authors use data from the United States and show that Omicron BA.4/5 subvariants, which became dominant in mid-2022, have stronger immune escape properties, but are no more severe, than the previously dominant BA.2.