Validation of a point-of-need diagnostic tool for rapid diagnosis of norovirus gastroenteritis.
Pediatr Neonatol 2022;
63:368-372. [PMID:
35379592 DOI:
10.1016/j.pedneo.2022.01.003]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 12/30/2021] [Accepted: 01/18/2022] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND
The genogroups GI and GII of norovirus (NoV) ribonucleic acid (RNA) genetic variants are the most prevalent cause of acute gastroenteritis outbreaks, especially in children, worldwide. A fast, accurate and convenient tool for diagnosis of NoV may be preferable to the more complicated performance of real-time reverse transcription-polymerase chain reaction (RT-PCR).
METHODS
In this study, we developed and evaluated a tool using insulated isothermal PCR (iiPCR)-mediated POCKIT Central NoV GI and NoV GII assay systems for diagnosis of NoV infection in pediatric patients suspected with gastroenteritis.
RESULTS
Performance of POCKIT Central Norovirus GI and GII assays using RT-iiPCR, compared to regular real-time RT-PCR showed the same diagnosis rate to NoV GI (100% of total percent agreement and 1.0 of Cohen's kappa value) and a similar detection rate to norovirus GII (96.3% of total percent agreement and 0.92 of Cohen's kappa value). In exclusivity tests, the POCKIT Central NoV GI and GII assays showed negative results to other viruses, indicating that the assays may be a NoV-specific detection tool.
CONCLUSION
POCKIT Central NoV GI and GII Assay systems can provide a simple, rapid, sensitive, and specific point-of-need diagnostic tool for the detection of NoV GI and GII RNAs in clinical specimens from children with acute gastroenteritis.
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