Emerging SARS-CoV-2 Variants and Impact in Global Vaccination Programs against SARS-CoV-2/COVID-19.

Emerging SARS-CoV-2 Variants and Impact in Global Vaccination Programs against SARS-CoV-2/COVID-19.
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DOI:
10.3390/vaccines9030243
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发表时间:
2021-03-11
期刊:
影响因子:
7.8
通讯作者:
Esteban M
Esteban M
中科院分区:
医学3区
文献类型:
--
作者:
Gómez CE;Perdiguero B;Esteban M

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严重急性呼吸综合征冠状病毒2型(SARS-CoV-2)变异体在不同大陆的出现引起了全球人类健康的重大关注。这些变体的共同点是具有更高的可传递性,在短时间内在群体中占主导地位,并且在刺突(S)蛋白中积累了大量突变,特别是在氨基末端结构域(NTD)和受体结合结构域(RBD)内。这些突变通过S RBD对细胞血管紧张素转换酶-2(ACE-2)受体的更高亲和力对病毒感染率有直接影响。在变异株主要传播的地区,也有增强的毒力、再感染频率和对来自恢复期血清和接种疫苗的个体的单克隆和多克隆抗体作用的抗性增加的迹象。在这篇综述中,我们描述了不同的SARS-CoV-2变异,迄今已确定在世界各地的突变变化和生物学特性,以及它们在医疗对策和人类健康的影响。
The emergence of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) variants in different continents is causing a major concern in human global health. These variants have in common a higher transmissibility, becoming dominant within populations in a short time, and an accumulation of a high number of mutations in the spike (S) protein, especially within the amino terminal domain (NTD) and the receptor binding domain (RBD). These mutations have direct implications on virus infection rates through higher affinity of S RBD for the cellular angiotensin-converting enzyme-2 (ACE-2) receptor. There are also signs of enhanced virulence, re-infection frequency, and increased resistance to the action of monoclonal and polyclonal antibodies from convalescence sera and in vaccinated individuals in regions where the variants spread dominantly. In this review, we describe the different SARS-CoV-2 variants that have thus far been identified in various parts of the world with mutational changes and biological properties as well as their impact in medical countermeasures and human health.
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