ArticleMolecular biology reports2026
Development and clinical validation of a PCR assay for human parvovirus B19 detection with applications in challenging diagnostic scenarios.
Article in Molecular biology reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundHuman parvovirus B19 (HB19V) infection poses significant clinical challenges in resource-limited settings, particularly regarding blood safety surveillance and diagnosis of associated syndromes. Limited access to validated diagnostic assays restricts clinical management and transfusion safety protocols. The objective is to develop and validate an in-house duplex real-time PCR assay for HB19V detection and evaluate its clinical utility in a resource-limited setting. METHODS AND
resultsA duplex real-time PCR assay targeting the conserved NS1 gene of HB19V with RNase P as endogenous control was developed. Analytical validation assessed amplification efficiency, limit of detection (LOD), precision (intra- and inter-assay coefficients of variation), and cross-reactivity. Clinical validation compared qualitative agreement with a CE-certified commercial kit using Cohen's kappa statistic. Positive samples underwent Sanger sequencing for genotype characterization. Clinical specimens from suspected HB19V infections were tested and results correlated with patient presentations. The assay demonstrated 98.82% amplification efficiency with LOD of 6 copies/µL. Precision metrics showed excellent reproducibility (CoV < 1% intra-assay, < 5% inter-assay) with no cross-reactivity. Qualitative agreement with the commercial reference was 100% (Cohen's kappa > 0.95). Clinical application identified three significant cases: post-transfusion HB19V in neonatal bilirubin encephalopathy, HB19V consideration in severe anaemia with ventriculitis, and active infection in paediatric Ewing sarcoma with chemotherapy-induced cytopenias requiring IVIG therapy. Genotyping revealed genotypes 1a and 3, confirming regional viral diversity.
conclusionThis validated in-house duplex real-time PCR assay provides a cost-effective, locally sustainable diagnostic tool for HB19V detection. It addresses critical gaps in blood safety surveillance and expands diagnostic capacity for HB19V-associated syndromes in resource-limited settings, while highlighting the necessity of contextual clinical interpretation for optimal patient management.
Indexed as
Identifiers
42397555What OpenQuestion holds
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.