Fig. 2From: A regional genomic surveillance program is implemented to monitor the occurrence and emergence of SARS-CoV-2 variants in Yubei District, ChinaA The boxplot of distribution of different SARS-COV-2 lineages in Chongqing Yubei from January to May 2023. B The sankey diagram of imported distribution of the origin, sampling date and types of variants from January 2022 to January 2023Back to article page