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Review
2021 Mar11;9(3):243。
doi:10.3390/vaccines9030243。

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

Carmen Elena Gómez 1个单击功能区上Beatriz Perdiguero 1个单击功能区上Mariano Esteban 1个
疲劳,疲劳
Review

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

Carmen Elena Gómezet al。 Vaccines(Basel)

Abstract

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 high er 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-2variants that have thus far been identified in various parts of the world with mutational changes and biological properties as well astheir impact in medical countermeasures and human health。

Keywords:COVID-19;SARS-COV-2;lineage;mutation;neutralizing antibodies;spike protein;vaccine efficicacy;variant。

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The authors declare no conflict of interest。

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