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Antibody escape of SARS-CoV-2 Omicron BA.4 and BA.5 from vaccine and BA.1 serum

Tuekprakhon, Aekkachai, Huo, Jiandong, Nutalai, Rungtiwa, Dijokaite-Guraliuc, Aiste, Zhou, Daming, Ginn, Helen M., Selvaraj, Muneeswaran, Liu, Chang, Mentzer, Alexander J., Supasa, Piyada, and others. (2022) Antibody escape of SARS-CoV-2 Omicron BA.4 and BA.5 from vaccine and BA.1 serum. Cell, 185 (14). pp. 2422-2433. ISSN 0092-8674. (doi:10.1016/j.cell.2022.06.005) (KAR id:95408)

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The Omicron lineage of SARS-CoV-2, first described in November 2021, spread rapidly to become globally dominant and has split into a number of sub-lineages. BA.1 dominated the initial wave but has been replaced by BA.2 in many countries. Recent sequencing from South Africa’s Gauteng region uncovered two new sub-lineages, BA.4 and BA.5 which are taking over locally, driving a new wave. BA.4 and BA.5 contain identical spike sequences and, although closely related to BA.2, contain further mutations in the receptor binding domain of spike. Here, we study the neutralization of BA.4/5 using a range of vaccine and naturally immune serum and panels of monoclonal antibodies. BA.4/5 shows reduced neutralization by serum from triple AstraZeneca or Pfizer vaccinated individuals compared to BA.1 and BA.2. Furthermore, using serum from BA.1 vaccine breakthrough infections there are likewise, significant reductions in the neutralization of BA.4/5, raising the possibility of repeat Omicron infections.

Item Type: Article
DOI/Identification number: 10.1016/j.cell.2022.06.005
Uncontrolled keywords: SARS-CoV-2, Omicron, Covid-19
Subjects: Q Science > QR Microbiology > QR355 Virology
Divisions: Divisions > Division of Natural Sciences > Medway School of Pharmacy
Depositing User: Nigel Temperton
Date Deposited: 12 Jun 2022 12:02 UTC
Last Modified: 04 Jul 2023 11:19 UTC
Resource URI: (The current URI for this page, for reference purposes)

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