Article (Scientific journals)
Development of a Specific Anti-capsid Antibody- and Magnetic Bead-Based Immunoassay to Detect Human Norovirus Particles in Stool Samples and Spiked Mussels via Flow Cytometry.
Razafimahefa, Ravo Michèle; Ludwig-Begall, Louisa; Diallo, Mamadou Amadou et al.
2021In Food and Environmental Virology
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Keywords :
Flow cytometry; Magnetic bead-based immunoassay; Mussels; Norovirus; Stool samples
Abstract :
[en] Human noroviruses impose a considerable health burden globally. Here, a flow cytometry approach designed for their detection in biological waste and food samples was developed using antibody-coated magnetic beads. Antipeptide antibodies against murine norovirus and various human norovirus genotypes were generated for capture and coated onto magnetic beads. A flow cytometry assay was then implemented to detect bead-bound human norovirus GI.3 in patient stool samples and in norovirus-spiked mussel digestive tissues. The detection limit for stool samples was 10(5) gc/mL, thus bettering detection limits of commercially available norovirus diagnosis quick kits of 100-fold; the detection limit in spiked mussels however was ten-fold higher than in stool samples. Further assays showed a decrease in fluorescence intensity for heat- or UV-inactivated virus particles. Overall, we demonstrate the application of a flow cytometry approach for direct detection of small non-enveloped virus particles such as noroviruses. An adaptation of the technology to routine diagnostics has the potential to contribute a rapid and sensitive tool to norovirus outbreak investigations. Further improvements to the method, notably decreasing the detection limit of the approach, may allow the analysis of naturally contaminated food and environmental samples.
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Razafimahefa, Ravo Michèle ;  Université de Liège - ULiège > FARAH
Ludwig-Begall, Louisa  ;  Université de Liège - ULiège > Département des maladies infectieuses et parasitaires (DMI) > Virologie vétérinaire et maladies virales animales
Diallo, Mamadou Amadou  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques
Dewals, Benjamin G  ;  Université de Liège - ULiège > Immunologie vétérinaire
Vanderplasschen, Alain ;  Université de Liège - ULiège > Immunologie vétérinaire
Nivelles, Olivier
Deketelaere, Caroline
Mauroy, Axel
Thiry, Etienne ;  Université de Liège - ULiège > Département des maladies infectieuses et parasitaires (DMI) > Virologie vétérinaire et maladies virales animales
Language :
English
Title :
Development of a Specific Anti-capsid Antibody- and Magnetic Bead-Based Immunoassay to Detect Human Norovirus Particles in Stool Samples and Spiked Mussels via Flow Cytometry.
Publication date :
2021
Journal title :
Food and Environmental Virology
ISSN :
1867-0334
eISSN :
1867-0342
Publisher :
Springer, Germany
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
© 2021. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
Available on ORBi :
since 25 October 2021

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