摘要
Dear Editor,The SARS-CoV-2 Omicron variant has rapidly displaced the Delta variant and spread across the world.The Omicron variant harbors over 60 mutations,and 15 of the mutations are located in the receptor-binding domain(RBD).1 Compared with parental virus and previous variants,the Omicron variant is characterized by decreased hospitalization rates and less severe disease in patients.
基金
the National Key Research and Development Program of China(2017YFA0505602)
the National Natural Science Foundation(81930078,81872246,81802756,31470773 and 81773135)
Military Medical Innovation Project(18CXZ047).
