新冠病毒“奥密克戎亚变体BA.5”的最新研究进展

The latest research progress of novel coronavirus"Omicron sub⁃variant BA.5"

自2019年新型冠状病毒肺炎爆发以来,新型冠状病毒基因组仍在不断地变异,形成多种传播力强的变异株,致使全球范围内疫情蔓延,给人们的身心健康带来严重威胁,也对全球公共卫生构成重大挑战。而奥密克戎(Omicron)仍是全球多起疫情的主要变异株,约占全球基因序列的99%。近日,世界卫生组织公布已在全球100多个国家和地区发现Omicron亚变体BA.5,变异株致使全球疫情反弹。但目前关于亚变体BA.5的报道较少。本文就Omicron亚变体BA.5的流行病学、传染性、致病性、疫苗及单克隆抗体对其保护效力等方面的最新研究进展进行综述,以期为Omicron亚变体BA.5的科学防控提供参考。

Since the outbreak of COVID⁃19,severe acute respiratory syndrome coronavirus 2 genome is still mutating,forming a variety of variants with strong transmission capacity,causing the spread of the epidemic worldwide,posing a serious threat to people's physical and mental health,and posing a major challenge to global public health.Omicron remains the main vari⁃ant in several outbreaks worldwide,accounting for about 99%of the global genetic sequence.Recently,the World Health Organi⁃zation announced that the subvariant of Omicron BA.5 has been found in more than 100 countries and regions around the world,causing the global epidemic rebound.However,there are few studies on the subvariant BA.5.This article reviews the latest re⁃search progress in epidemiology,infectivity,pathogenicity,vaccine and monoclonal antibody protection against Omicron subvari⁃ant BA.5,in order to provide reference for scientific prevention and control of Omicron subvariant BA.5.