| Literature DB >> 33725725 |
Maria R Farcet1, Michael Karbiener1, Julia Schwaiger1, Reinhard Ilk2, Thomas R Kreil1.
Abstract
Immunoglobulin lots (N = 176) released since March 2020 were tested for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) neutralizing antibodies, with first positive results for September 2020 lots (mean, 1.7 IU/mL; 46% of lots positive). From there, values steadily increased, in correlation with the cumulative coronavirus disease 2019 (COVID-19) incidence, to reach a mean of 31.2 IU/mL and 93% of lots positive by January 2021. Extrapolating the correlation, immunoglobulins could reach an anti-SARS-CoV-2 potency of approximately 345 IU/mL by July 2021. At that stage, prophylactic immunoglobulin treatment for primary/secondary immunodeficiency could contain similar doses of anti-SARS-CoV-2 as convalescent plasma that is used for treatment of COVID-19.Entities:
Keywords: COVID-19; SARS-CoV-2; SARS-CoV-2 antibody potency; immunoglobulin; intravenous immune globulin; neutralizing antibodies; plasma; primary immunodeficiency; prophylaxis; secondary immunodeficiency
Mesh:
Substances:
Year: 2022 PMID: 33725725 PMCID: PMC7989343 DOI: 10.1093/infdis/jiab142
Source DB: PubMed Journal: J Infect Dis ISSN: 0022-1899 Impact factor: 7.759