Increased pathogenicity and transmission of SARS-CoV-2 Omicron XBB.1.9 sublineage, including HK.3 and EG.5.1
Qiushi Jin, Ruixue Liu, Wenqi Wang, Jichen Xie, Fang Yan, Tiecheng Wang, Haiyang Xiang, Xianzhu Xia, Jianmin Li, Xuefeng Wang, Yuwei Gao
This study investigates the virological features of SARS-CoV-2 Omicron XBB.1.9 subvariants, finding increased pathogenicity and transmissibility in HK.3 and EG.5.1 compared to previous variants.
Journal of Virology · Nov 18, 2025Peer-reviewedMicrobiology