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Low serum neutralizing anti-SARS-CoV-2 S antibody levels in mildly affected COVID-19 convalescent patients revealed by two different detection methods

引用

Cellular & Molecular Immunology 2021年第4期18卷 936-944页

作者： Berislav Bosnjak saskia catherina stein Stefanie Willenzon Anne Katrin Cordes Wolfram Puppe Gunter Bernhardt Inga Ravens Christiane Ritter Christian R.Schultze-Florey Nina Godecke Jorg Martens Hannah Kleine-Weber Markus Hoffmann Anne Cossmann Mustafa Yilmaz Isabelle Pink Marius M.Hoeper Georg M.N.Behrens Stefan Pohlm ann Rainer Blasczyk Thomas F.Schulz Reinhold Forster Institute of Immunology Hannover Medical SchoolHannoverGermany lnstitute of Virology Hannover Medical SchoolHannoverGermany Department of Hematology HemostasisOncology and Stem Cell TransplantationHannover Medical SchoolHannoverGermany Institute of Transfusion Medicine and Transplant Engineering Hannover Medical SchoolHannoverGermany German Primate Center-Leibniz Institute for Primate Research GottingenGermany Faculty of Biology and Psychology University GottingenGottingenGermany Department of Rheum atology and Immunology Hannover Medical SchoolHannoverGermany Public Health Department HannoverGermany Department of Pneumology and German Centre of Lung Research(DZL) Hannover Medical SchoolHannoverGermany German Center for Infection Research(DZIF) partner site Hannover-BraunschweigHannoverGermany Cluster of Excellence RESIST(EXC 2155) Hannover Medical SchoolHannoverGermany

Neutralizing antibodies targeting the receptor-binding domain(RBD)of the SARS-CoV-2 spike(S)block severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)entry into cells via surface-expressed angiotensin-converting enzyme 2(ACE2).We used a surrogate virus neutralization test(sVNT)and SARS-CoV-2 S protein-pseudotyped vesicular stomatitis virus(VSV)vector-based neutralization assay(pVNT)to assess the degree to which serum antibodies from coronavirus disease 2019(COVID-19)convalescent patients interfere with the binding of SARS-CoV-2 S to *** tests revealed neutralizing anti-SARS-CoV-2 S antibodies in the sera of ~90% of mildly and 100% of severely affected COVID-19 convalescent ***,sVNT and pVNT results correlated strongly with each other and to the levels of anti-SARS-CoV-2 S1 IgG and IgA ***,levels of neutralizing antibodies correlated with the duration and severity of clinical symptoms but not with patient *** to pVNT,sVNT is less sophisticated and does not require any biosafety *** this assay is also much faster and cheaper,sVNT will not only be important for evaluating the prevalence of neutralizing antibodies in a population but also for identifying promising plasma donors for successful passive antibody therapy.

关键词： COVID-19 SARS-CoV-2 Neutralizing antibody Serum ELISA

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