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Published in: Inflammopharmacology 4/2023

19-05-2023 | Coronavirus | Review

Omicron variant evolution on vaccines and monoclonal antibodies

Authors: Michela Sabbatucci, Antonio Vitiello, Salvatore Clemente, Andrea Zovi, Mariarosaria Boccellino, Francesco Ferrara, Carla Cimmino, Roberto Langella, Annarita Ponzo, Paola Stefanelli, Giovanni Rezza

Published in: Inflammopharmacology | Issue 4/2023

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Abstract

The severe acute respiratory syndrome coronavirus (SARS-CoV)-2 responsible for the global COVID-19 pandemic has caused almost 760 million confirmed cases and 7 million deaths worldwide, as of end-February 2023. Since the beginning of the first COVID-19 case, several virus variants have emerged: Alpha (B1.1.7), Beta (B135.1), Gamma (P.1), Delta (B.1.617.2) and then Omicron (B.1.1.529) and its sublineages. All variants have diversified in transmissibility, virulence, and pathogenicity. All the newly emerging SARS-CoV-2 variants appear to contain some similar mutations associated with greater "evasiveness" of the virus to immune defences. From early 2022 onward, several Omicron subvariants named BA.1, BA.2, BA.3, BA.4, and BA.5, with comparable mutation forms, have followed. After the wave of contagions caused by Omicron BA.5, a new Indian variant named Centaurus BA.2.75 and its new subvariant BA.2.75.2, a second-generation evolution of the Omicron variant BA.2, have recently been identified. From early evidence, it appears that this new variant has higher affinity for the cell entry receptor ACE-2, making it potentially able to spread very fast. According to the latest studies, the BA.2.75.2 variant may be able to evade more antibodies in the bloodstream generated by vaccination or previous infection, and it may be more resistant to antiviral and monoclonal antibody drug treatments. In this manuscript, the authors highlight and describe the latest evidences and critical issues have emerged on the new SARS-CoV-2 variants.
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Metadata
Title
Omicron variant evolution on vaccines and monoclonal antibodies
Authors
Michela Sabbatucci
Antonio Vitiello
Salvatore Clemente
Andrea Zovi
Mariarosaria Boccellino
Francesco Ferrara
Carla Cimmino
Roberto Langella
Annarita Ponzo
Paola Stefanelli
Giovanni Rezza
Publication date
19-05-2023
Publisher
Springer International Publishing
Published in
Inflammopharmacology / Issue 4/2023
Print ISSN: 0925-4692
Electronic ISSN: 1568-5608
DOI
https://doi.org/10.1007/s10787-023-01253-6

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