Naive and breakthrough infections with BA.2, BA.5 and BF.7 variants provide poor cross protection against XBB related variants - Yang, Yang; Gong, Xiaohua; Tang, Yimin; Liu, Jiexiang; Zeng, Lijiao; Kuang, Jiahua; Wang, Fuxiang; Lu, Hongzhou; Liu, Yingxia (The Journal of infection, 2023)