Neutralization Testing–based Immunogenicity Analysis of Recent Prevalent Severe Acute Respiratory Syndrome Coronavirus 2 Omicron Sublineages

Abstract

Brief Communication Diagnostic ImmunologyFollowing the initial outbreak of coronavirus disease 2019 (CO-VID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in late 2019, WHO declared the end of this public health emergency in May 2023 [1]. COVID-19 control measures have since been relaxed in Korea [2]. Nevertheless, since early 2023, the XBB lineage has been predominant in several countries, including Korea, and it continues to differentiate. According to the Korea Disease Control and Prevention Agency (KDCA), the variant detection rates for the third week