Genomic Surveillance for SARS-CoV-2 — China, September 26, 2022 to January 29, 2023

Abstract

This study provides an overview of the prevalence of Omicron variants of SARS-CoV-2 in China. After optimizing COVID-19 prevention and control strategies, no novel Omicron variants of SARS-CoV-2 with altered biological characteristics or public health significance have been identified since December 1, 2022.