The effects of vaccination on the disease severity and factors for viral clearance and hospitalization in Omicron-infected patients: A retrospective observational cohort study from... oleh Hongru Li, Hongru Li, Xiongpeng Zhu, Rongguo Yu, Xin Qian, Yu Huang, Xiaoping Chen, Haibin Lin, Huiming Zheng, Yi Zhang, Jiarong Lin, Yanqin Deng, Wen Zhong, Yuejiao Ji, Qing Li, Jiabin Fang, Xiaojie Yang, Rong Lin, Fangsu Chen, Zhijun Su, Baosong Xie, Hong Li, Hong Li