To the Editor: Figure 1. Figure 1. Omicron Subvariant Mutations and Neutralizing Antibody Responses. Panel A shows the lineage of mutations that have been identified in the omicron BA.1, BA.2, … [Read more...] about Neutralization Escape by SARS-CoV-2 Omicron Subvariants BA.2.12.1, BA.4, and BA.5 | NEJM