Acta Microbiologica et Immunologica Hungarica
Volume/Issue:
Volume 70: Issue 1
Comparison of performance of LIAISON SARS-CoV-2 antigen assay with RT-PCR during the Omicron wave
Authors:
Neslihan AriciUniversity of Health Sciences, Haydarpasa Research and Training Hospital, Medical Microbiology Laboratory, Istanbul, Turkey

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Nilgün KansakUniversity of Health Sciences, Haydarpasa Research and Training Hospital, Medical Microbiology Laboratory, Istanbul, Turkey

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Tuğçe ŞentürkIstanbul University, Faculty of Science, Department of Molecular Biology and Genetics, Istanbul, Turkey

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Kürşat BaydiliUniversity of Health Sciences, Faculty of Medicine Hamidiye, Department of Bioistatistic and Medical Informatic, Istanbul, Turkey

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Sebahat AksarayUniversity of Health Sciences, Faculty of Medicine Hamidiye, Department of Medical Microbiology, Istanbul, Turkey

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Pages:
1–6
Online Publication Date:
09 Jan 2023
Publication Date:
02 Mar 2023
Article Category:
Research Article
DOI:
https://doi.org/10.1556/030.2022.01863
Keywords:
SARS-CoV-2; Liaison antigen test; RT-PCR; Omicron variant
Restricted access

Abstract

Due to the newly emerging Omicron variant, there is a need to re-evaluate the performance of automated antigen tests. Our study aim was to evaluate the performance of the automated Liaison SARS-CoV-2 antigen assay against reverse transcriptase polymerase chain reaction (RT-PCR) in samples with Omicron variant.

A prospective study was performed on 373 combined oro-nasopharyngeal samples (NPS) randomly collected from symptomatic patients. NPS were tested with Liaison SARS-CoV-2 Ag test (DiaSorin, Italy) and DS Coronex COVID-19 Multiplex RT-PCR Diagnosis Kit (DS BioTechnology, Ankara, Turkey).

Of 373 samples, 124 (33.2%) were found to be RT-PCR positive and 249 (66.8%) RT-PCR negative. Taking RT-PCR as a reference, the sensitivity and specificity of the Liaison SARS-CoV-2 Ag assay were found as 84.6% (95%CI 77.3%–90%) and 100% (95%CI 98.5%–100%), respectively. For samples with a cycle threshold (Ct) value <25 (high viral load), the sensitivity increased to 100%. When antigen concentration and Ct values were compared, a strong negative correlation between antigen and Ct values was determined (P < 0.001).

The Liaison antigen test met the performance criteria recommended by the WHO for samples with the Omicron variant. In addition, it showed excellent sensitivity and specificity in patients with high viral load. Therefore, Liaison antigen test can be a reliable and useful alternative in the diagnosis of SARS-CoV-2 infection, particularly in resource-constrained laboratories.

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Cover Acta Microbiologica et Immunologica Hungarica
Acta Microbiologica et Immunologica Hungarica A Quarterly of the Hungarian Academy of Sciences
Print ISSN:
1217-8950
Online ISSN:
1588-2640

 

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Senior editors

Editor-in-Chief: Prof. Dóra Szabó (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)

Managing Editor: Dr. Béla Kocsis (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)

Co-editor: Dr. Andrea Horváth (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)

Editorial Board

  • Prof. Éva ÁDÁM (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)
  • Prof. Sebastian AMYES (Department of Medical Microbiology, University of Edinburgh, Edinburgh, UK.)
  • Dr. Katalin BURIÁN (Institute of Clinical Microbiology University of Szeged, Szeged, Hungary; Department of Medical Microbiology and Immunobiology, University of Szeged, Szeged, Hungary.)
  • Dr. Orsolya DOBAY (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)
  • Prof. Ildikó Rita DUNAY (Institute of Inflammation and Neurodegeneration, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany; Center for Behavioral Brain Sciences (CBBS), Magdeburg, Germany)
  • Prof. Levente EMŐDY(Department of Medical Microbiology and Immunology, University of Pécs, Pécs, Hungary.)
  • Prof. Anna ERDEI (Department of Immunology, Eötvös Loránd University, Budapest, Hungary, MTA-ELTE Immunology Research Group, Eötvös Loránd University, Budapest, Hungary.)
  • Prof. Éva Mária FENYŐ (Division of Medical Microbiology, University of Lund, Lund, Sweden)
  • Prof. László FODOR (Department of Microbiology and Infectious Diseases, University of Veterinary Medicine, Budapest, Hungary)
  • Prof. József KÓNYA (Department of Medical Microbiology, University of Debrecen, Debrecen, Hungary)
  • Prof. Yvette MÁNDI (Department of Medical Microbiology and Immunobiology, University of Szeged, Szeged, Hungary)
  • Prof. Károly MÁRIALIGETI (Department of Microbiology, Eötvös Loránd University, Budapest, Hungary)
  • Prof. János MINÁROVITS (Department of Oral Biology and Experimental Dental Research, University of Szeged, Szeged, Hungary)
  • Prof. Béla NAGY (Centre for Agricultural Research, Institute for Veterinary Medical Research, Budapest, Hungary.)
  • Prof. István NÁSZ (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)
  • Prof. Kristóf NÉKÁM (Hospital of the Hospitaller Brothers in Buda, Budapest, Hungary.)
  • Dr. Eszter OSTORHÁZI (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)
  • Prof. Rozália PUSZTAI (Department of Medical Microbiology and Immunobiology, University of Szeged, Szeged, Hungary)
  • Prof. Peter L. RÁDY (Department of Dermatology, University of Texas, Houston, Texas, USA)
  • Prof. Éva RAJNAVÖLGYI (Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary)
  • Prof. Ferenc ROZGONYI (Institute of Laboratory Medicine, Semmelweis University, Budapest, Hungary)
  • Prof. Zsuzsanna SCHAFF (2nd Department of Pathology, Semmelweis University, Budapest, Hungary)
  • Prof. Joseph G. SINKOVICS (The Cancer Institute, St. Joseph’s Hospital, Tampa, Florida, USA)
  • Prof. Júlia SZEKERES (Department of Medical Biology, University of Pécs, Pécs, Hungary.)
  • Prof. Mária TAKÁCS (National Reference Laboratory for Viral Zoonoses, National Public Health Center, Budapest, Hungary.)
  • Prof. Edit URBÁN (Department of Medical Microbiology and Immunology University of Pécs, Pécs, Hungary; Institute of Translational Medicine, University of Pécs, Pécs, Hungary.)

 

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2021  
Web of Science  
Total Cites
WoS		 696
Journal Impact Factor 2,298
Rank by Impact Factor Immunology 141/161
Microbiology 118/136
Impact Factor
without
Journal Self Cites		 2,143
5 Year
Impact Factor		 1,925
Journal Citation Indicator 0,39
Rank by Journal Citation Indicator Immunology 146/177
Microbiology 129/157
Scimago  
Scimago
H-index		 29
Scimago
Journal Rank		 0,362
Scimago Quartile Score Immunology and Microbiology (miscellaneous) (Q3)
Medicine (miscellaneous) (Q3)
Scopus  
Scopus
Cite Score		 3,6
Scopus
CIte Score Rank		 General Immunology and Microbiology 26/56 (Q2)
Infectious Diseases 149/295 (Q3)
Microbiology (medical) 66/118 (Q3)
Scopus
SNIP		 0,598

2020  
Total Cites 662
WoS
Journal
Impact Factor		 2,048
Rank by Immunology 145/162(Q4)
Impact Factor Microbiology 118/137 (Q4)
Impact Factor 1,904
without
Journal Self Cites
5 Year 0,671
Impact Factor
Journal  0,38
Citation Indicator  
Rank by Journal  Immunology 146/174 (Q4)
Citation Indicator  Microbiology 120/142 (Q4)
Citable 42
Items
Total 40
Articles
Total 2
Reviews
Scimago 28
H-index
Scimago 0,439
Journal Rank
Scimago Immunology and Microbiology (miscellaneous) Q4
Quartile Score Medicine (miscellaneous) Q3
Scopus 438/167=2,6
Scite Score  
Scopus General Immunology and Microbiology 31/45 (Q3)
Scite Score Rank  
Scopus 0,760
SNIP
Days from  225
submission
to acceptance
Days from  118
acceptance
to publication
Acceptance 19%
Rate

2019  
Total Cites
WoS		 485
Impact Factor 1,086
Impact Factor
without
Journal Self Cites		 0,864
5 Year
Impact Factor		 1,233
Immediacy
Index		 0,286
Citable
Items		 42
Total
Articles		 40
Total
Reviews		 2
Cited
Half-Life		 5,8
Citing
Half-Life		 7,7
Eigenfactor
Score		 0,00059
Article Influence
Score		 0,246
% Articles
in
Citable Items		 95,24
Normalized
Eigenfactor		 0,07317
Average
IF
Percentile		 7,690
Scimago
H-index		 27
Scimago
Journal Rank		 0,352
Scopus
Scite Score		 320/161=2
Scopus
Scite Score Rank		 General Immunology and Microbiology 35/45 (Q4)
Scopus
SNIP		 0,492
Acceptance
Rate		 16%

 

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Acta Microbiologica et Immunologica Hungarica
Language English
Size A4
Year of
Foundation		 1954
Volumes
per Year		 1
Issues
per Year		 4
Founder Magyar Tudományos Akadémia
Founder's
Address		 H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1217-8950 (Print)
ISSN 1588-2640 (Online)

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