ArticleViruses2022
Serum SARS-CoV-2 Antigens for the Determination of COVID-19 Severity.
Article in Viruses, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
14 citing papers in PubMed, 24 citations in OpenAlex.
- Sotrovimab versus usual care in patients admitted to hospital with COVID-19 (RECOVERY): a randomised, controlled, open-label, platform trial.The Lancet. Infectious diseases · 2026Trial
- SARS-CoV-2 Plasma Antibody and Nucleocapsid Antigen Status Predict Outcomes in Outpatients With COVID-19.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2024Trial
- SARS-CoV-2 RNA and Nucleocapsid Antigen Are Blood Biomarkers Associated With Severe Disease Outcomes That Improve in Response to Remdesivir.The Journal of infectious diseases · 2024Trial
- Assessment of Residual-Serum SARS-CoV-2-N-Antigen Testing for Hospital Surveillance in Germany.Journal of medical virology · 2026Article
- Successful Treatment of Persistent and Relapsing COVID-19 with Ensitrelvir in a Patient with Obinutuzumab-Induced Long-Term B-Cell Depletion: A Case Report.Reports (MDPI) · 2026Article
- Plasmon-Enhanced Fluorescence Paper Lateral Flow Strip for Point-of-Care Testing of SARS-CoV-2 Antigens.Analytical chemistry · 2025Article
- Complex Pattern of Platelet Activation/Reactivity After SARS-CoV-2 Infection.International journal of molecular sciences · 2024Review
- Diagnostic Utility of SARS-CoV-2 Nucleocapsid Antigenemia: A Meta-analysis.Open forum infectious diseases · 2024Article
- Performance of Blood-Based Nucleocapsid Antigen Tests for Diagnosis of Severe Acute Respiratory Syndrome Coronavirus 2 Infection and Infectious Viral Shedding: A Systematic Review.Open forum infectious diseases · 2023Review
- Improvement of Sensitivity and Speed of Virus Sensing Technologies Using nm- and μm-Scale Components.Sensors (Basel, Switzerland) · 2023Review
- SARS-CoV-2 Spike Protein and Neutralizing Anti-Spike Protein Antibodies Modulate Blood Platelet Function.International journal of molecular sciences · 2023Article
- Diagnostic value and characteristic analysis of serum nucleocapsid antigen in COVID-19 patients.PeerJ · 2023Article
- Nucleocapsid Antigenemia Is a Marker of Acute SARS-CoV-2 Infection.The Journal of infectious diseases · 2022Article
- Regulating the product quality of COVID-19 antigen testing reagents: A tripartite evolutionary game analysis under China's legal framework.Frontiers in public health · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The diagnostic of SARS-CoV-2 infection relies on reverse transcriptase polymerase chain reactions (RT-PCRs) performed on nasopharyngeal (NP) swabs. Nevertheless, false-negative results can be obtained with inadequate sampling procedures, making the use of other biological matrices worthy of investigation. This study aims to evaluate the kinetics of serum N antigens in severe and non-severe patients and compare the clinical performance of serum antigenic assays with NP RT-PCR. Ninety patients were included in the study and monitored for several days. Disease severity was determined according to the WHO clinical progression scale. Serum N antigen levels were measured with a chemiluminescent assay (CLIA) and the Single Molecular Array (Simoa) assay. Viremia thresholds for severity were determined and proposed. In severe patients, the peak antigen response was observed 7 days after the onset of symptoms, followed by a decline. No real peak response was observed in non-severe patients. Severity thresholds for the Simoa and the CLIA provided positive likelihood ratios of 30.0 and 10.9 for the timeframe between day 2 and day 14, respectively. Sensitive detection of N antigens in serum may thus provide a valuable new marker for COVID-19 diagnosis and evaluation of disease severity. When assessed during the first 2 weeks since the onset of symptoms, it may help in identifying patients at risk of developing severe COVID-19 to optimize better intensive care utilization.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.