Abstract
After >2 years of the coronavirus disease 2019 (COVID-19) pandemic, immunoglobulins (IGs) contain highly potent severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) neutralizing antibodies, based on the large proportion of United States (US) plasma donors who have gone through COVID-19 or vaccination against the virus. Neutralization of Omicron SARS-CoV-2 by antibodies generated after non-Omicron infection or vaccination has been lower though, raising concerns about the potency of IG against this new virus variant. Also, as plasma collected in the US remains the main source of IG, the neutralization of SARS-CoV-2 for plasma collected elsewhere has been less well studied. Here, we confirm Omicron neutralization by US as well as European Union plasma-derived IG lots.
Keywords: SARS-CoV-2 antibody potency; intravenous immunoglobulin; neutralizing antibodies; primary immunodeficiency; prophylaxis.
【저자키워드】 Intravenous immunoglobulin, Neutralizing antibodies, Primary Immunodeficiency, Prophylaxis., SARS-CoV-2 antibody potency, 【초록키워드】 COVID-19, coronavirus disease, SARS-CoV-2, coronavirus, vaccination, pandemic, antibody, neutralization, variant, Infection, omicron, virus, Prophylaxis, SARS-CoV-2 antibody, Immunoglobulin, plasma, Neutralizing, Donor, intravenous, acute respiratory syndrome, union, new virus, European, collected, proportion, United State, less, raising, 【제목키워드】 Europe, omicron, coronavirus 2, respiratory, preparation, the United State,