Evidence map›Paper›PMID 40544217›Full record

ArticleFood and environmental virology2025

Detection of Murine Norovirus on Fresh Produce Through a CRISPR/Cas13a RNase-Based Capsid Integrity Assay.

Axel Ossio, Angel Merino-Mascorro, Juan S Leon, Norma Heredia, Santos Garcia

Abstract readEvaluation Study
In one paragraph

Article in Food and environmental virology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Axel OssioLaboratorio de Bioquímica y Genética de Microorganismos, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, 066455, San Nicolás de los Garza, N.L., Mexico.ORCID 0009-0001-1434-2605
Angel Merino-MascorroLaboratorio de Bioquímica y Genética de Microorganismos, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, 066455, San Nicolás de los Garza, N.L., Mexico.ORCID 0000-0003-1192-931X
Juan S LeonHubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA.ORCID 0000-0003-3893-8347
Norma HerediaLaboratorio de Bioquímica y Genética de Microorganismos, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, 066455, San Nicolás de los Garza, N.L., Mexico.ORCID 0000-0002-3876-7763
Santos GarciaLaboratorio de Bioquímica y Genética de Microorganismos, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, 066455, San Nicolás de los Garza, N.L., Mexico. santos@microbiosymas.com.ORCID 0000-0001-7405-5504

Funding

National Institute of Food and Agriculture 2019-67017-29642Universidad Autonoma de Nuevo Leon PROVERICYT
6 · The paper itself

Abstract

Standard food detection methods do not distinguish between infectious and non-infectious human norovirus leading to uncertainty in the management of a norovirus positive food sample. These methods also require expensive RT-qPCR-based equipment and reagents. In contrast, CRISPR-based, compared to RT-qPCR-based, detection methods are generally less expensive and yield similar sensitivity and specificity. Our goal was to detect norovirus with an intact capsid, a proxy for infectivity, through a CRISPR-Cas13a-based detection method together with an RNase-capsid integrity assay. We termed this assay: Foodborne RNA-virus Enzymatic Sensing for High-throughput on fresh produce (CRISPR FRESH) reflecting its potential to detect infectious or potentially infectious virus particles. Our CRISPR FRESH method detected murine norovirus (MNV-1), with an intact capsid, at a limit of detection of 2.59 log10 gc/25 g (5 gc/rx). This method did not cross-react with other targets (synthetic DNA targets for hepatitis A virus; human norovirus GI, GII; rotavirus). Compared with RT-qPCR, CRISPR FRESH showed an increased sensitivity when detecting low copy numbers of RNase-pre-treated MNV-1 in lettuce and blueberries samples. Viral detection with the RT-qPCR assay is quantifiable while the CRISPR assay is present/absent. This report describes a CRISPR-based detection of potentially infectious viruses in food samples.

Indexed as

CapsidCapsid ProteinsFood ContaminationNorovirusRibonucleasesAnimalsCRISPR-Cas SystemsFood MicrobiologyFruitHumansMiceCapsid ProteinsRibonucleasesBlueberriesCRISPR–Cas13aFoodborneInfectivityLettuceNorovirus

Identifiers

PMID40544217
PMCPMC12868024

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Registered trials

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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.