Colloidal gold immunochromatographic assay (GICA) is an effective screening method for identifying detectable anti-SARS-CoV-2 neutralizing antibodies

Copyright © 2021 The Author(s). Published by Elsevier Ltd.. All rights reserved..

INTRODUCTION: A large number of COVID-19 patients are in recovery, and millions of people are vaccinated for COVID-19 globally. This calls for a rapid screening strategy of SARS-CoV-2 protective antibodies, generated in rehabilitated and vaccinated populations.

METHODS: Serum samples collected over a follow-up period of six months from 306 COVID-19 cases discharged from Wuhan Tongji Hospital were analyzed. Anti-S Abs were detected by colloidal gold immunochromatographic assay (GICA), and neutralizing antibodies (nAbs) were detected by chemiluminescent microparticle immunoassay (CMIA).

RESULTS: Most COVID-19 survivors tested positive for anti-S Abs (83.7%) and nAbs (98.0%) 6 months after being discharged from the hospital, and the levels of anti-S Abs in the blood were highly positively correlated with nAbs (r = 0.652, P < 0.0001). The positivity rate of nAbs for patients with anti-S Abs positive was 100%.

CONCLUSIONS: There is a good agreement between anti-S Abs detected by GICA and nAbs detected by CMIA. It indicates that anti-S Abs detected by GICA may be used as a cheaper screening strategy for detectable SARS-CoV-2 nAbs in COVID-19 convalescent individuals.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:108

Enthalten in:

International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases - 108(2021) vom: 15. Juli, Seite 483-486

Sprache:

Englisch

Beteiligte Personen:

Li, Xinjie [VerfasserIn]
Yin, Yue [VerfasserIn]
Pang, Ling [VerfasserIn]
Xu, Shuyun [VerfasserIn]
Lu, Fengmin [VerfasserIn]
Xu, Dong [VerfasserIn]
Shen, Tao [VerfasserIn]

Links:

Volltext

Themen:

Antibodies, Neutralizing
Antibodies, Viral
COVID-19
Colloidal gold immunochromatographic assay (GICA)
Gold Colloid
Journal Article
Neutralizing antibody
SARS-CoV-2

Anmerkungen:

Date Completed 19.08.2021

Date Revised 19.08.2021

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.ijid.2021.05.080

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM326392378