Severe Acute Respiratory Syndrome Coronavirus 2 Hyperimmune Intravenous Human Immunoglobulins Neutralizes Omicron Subvariants BA.1, BA.2, BA.2.12.1, BA.3, and BA.4/BA.5 for Treatment of Coronavirus Disease 2019.

Awasthi, Mayanka; Golding, Hana; Khurana, Surender · Clin Infect Dis · 2023

basic_science · Level V

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Abstract

Our study demonstrates that neither 2020 convalescent plasma (CP) nor 2019/2020 intravenous immunoglobulin (IVIG) neutralizes Omicron subvariants BA.1 to BA.5. In contrast, 2020 hyperimmune anti-severe acute respiratory syndrome coronavirus 2 IVIG (hCoV-2IG) lots neutralized Omicron variants of concern, similar to results with 2022 CP from BA.1 breakthrough infections. Therefore, high-titer hCoV-2IG and CP could be evaluated for treatment of high-risk individuals infected with circulating Omicron subvariants.

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