J 2021

Interpretive discrepancies caused by target values inter-batch variations in chemiluminescence immunoassay for SARS-CoV-2 IgM/IgG by MAGLUMI

SELINGEROVÁ, Iveta, Dalibor VALÍK, Lenka GESCHEIDTOVÁ, Vladimír ŠRÁMEK, Z. CERMAKOVA et. al.

Basic information

Original name

Interpretive discrepancies caused by target values inter-batch variations in chemiluminescence immunoassay for SARS-CoV-2 IgM/IgG by MAGLUMI

Edition

Journal of Medical Virology, Hoboken, Wiley, 2021, 0146-6615

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30230 Other clinical medicine subjects

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 20.693

Organization unit

Faculty of Medicine

UT WoS

000583206600001

Keywords (in Czech)

anti‐ SARS‐ CoV‐ 2 IgG; anti‐ SARS‐ CoV‐ 2 IgM; CLIA; inter‐ assay batch variation; interpretative inconsistency

Keywords in English

anti‐ SARS‐ CoV‐ 2 IgG; anti‐ SARS‐ CoV‐ 2 IgM; CLIA; inter‐ assay batch variation; interpretative inconsistency
Změněno: 8/2/2022 10:35, Mgr. Tereza Miškechová

Abstract

V originále

Plasma specimens from coronavirus disease 2019 patients were double-tested for anti-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibodies by two different batches of MAGLUMI 2019-nCov immunoglobulin M/immunoglobulin G (IgM/IgG) assays to evaluate IgM/IgG levels, qualitative interpretation, antibody kinetics, and linearity of diluted specimen. Here we show that (i) high-level IgM specimens need to be diluted with negative human plasma but not kit diluents and (ii) measured anti-SARS-CoV-2 IgM/IgG concentrations are substantially higher with later marketed immunoassay batch leading to (iii) the change of qualitative interpretation (positive vs. negative) in 12.3% of specimens measured for IgM, (iv) the informative time-course pattern of antibody production only when data from different immunoassay batches are not combined.

Links

90128, large research infrastructures
Name: CZECRIN III