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Development and Evaluation of a Rapid GII Norovirus Detection Method Based on CRISPR-Cas12a Cover

Development and Evaluation of a Rapid GII Norovirus Detection Method Based on CRISPR-Cas12a

By: Xinyi Hu,  Pei He,  Tong Jiang and  Jilu Shen  
Open Access
|Mar 2024

Abstract

Norovirus is highly infectious and rapidly transmissible and represents a major pathogen of sporadic cases and outbreaks of acute gastroenteritis worldwide, causing a substantial disease burden. Recent years have witnessed a dramatic increase in norovirus outbreaks in China, significantly higher than in previous years, among which GII norovirus is the predominant prevalent strain. Therefore, rapid norovirus diagnosis is critical for clinical treatment and transmission control. Hence, we developed a molecular assay based on RPA combined with the CRISPER-CAS12a technique targeting the conserved region of the GII norovirus genome, the results of which could be displayed by fluorescence curves and immunochromatographic lateral-flow test strips. The reaction only required approximately 50 min, and the results were visible by the naked eye with a sensitivity reaching 102 copies/μl. Also, our method does not cross-react with other common pathogens that cause intestinal diarrhea. Furthermore, this assay was easy to perform and inexpensive, which could be widely applied for detecting norovirus in settings including medical institutions at all levels, particularly township health centers in low-resource areas.

DOI: https://doi.org/10.33073/pjm-2024-009 | Journal eISSN: 2544-4646 | Journal ISSN: 1733-1331
Language: English
Page range: 89 - 97
Submitted on: Oct 28, 2023
Accepted on: Jan 22, 2024
Published on: Mar 4, 2024
Published by: Polish Society of Microbiologists
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2024 Xinyi Hu, Pei He, Tong Jiang, Jilu Shen, published by Polish Society of Microbiologists
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.