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Evaluation of a New Immunochromatographic Assay Kit for the Rapid Detection of Norovirus in Fecal Specimens

机译:快速检测粪便标本中诺如病毒的新型免疫色谱分析试剂盒的评估

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摘要

Rapid and accurate detection of norovirus is essential for the prevention and control of norovirus outbreaks. This study compared the effectiveness of a new immunochromatographic assay kit (SD BIOLINE Norovirus; Standard Diagnostics, Korea) and real-time reverse transcription-PCR (RT-PCR) for detecting norovirus in fecal specimens. Compared with real-time RT-PCR, the new assay had sensitivity, specificity, positive predictive value, and negative predictive value of 76.5% (52/68), 99.7% (342/343), 98.1% (52/53), and 95.5% (342/358), respectively. The sensitivity of the assay was 81.8% (18/22) for GII.3 and 75.7% (28/37) for GII.4. None of the 38 enteric virus-positive specimens (3 for astrovirus, 5 for enteric adenovirus, and 30 for rotavirus) tested positive in the cross-reactivity test performed by using this assay. The new immunochromatographic assay may be a useful screening tool for the rapid detection of norovirus in sporadic and outbreak cases; however, negative results may require confirmatory assays of greater sensitivity.
机译:快速和准确检测诺如病毒对于预防和控制诺如病毒爆发至关重要。这项研究比较了新型免疫色谱分析试剂盒(SD BIOLINE Norovirus;韩国标准诊断公司)和实时逆转录PCR(RT-PCR)检测粪便中诺如病毒的效果。与实时RT-PCR相比,该新方法的灵敏度,特异性,阳性预测值和阴性预测值分别为76.5%(52/68),99.7%(342/343),98.1%(52/53),和95.5%(342/358)。该测定的灵敏度对于GII.3为81.8%(18/22),对于GII.4为75.7%(28/37)。在使用此测定法进行的交叉反应性测试中,没有38个肠道病毒阳性标本(3个用于星状病毒,5个用于肠腺病毒,30个用于轮状病毒)呈阳性。新的免疫色谱分析可能是快速检测散发和暴发病例中诺如病毒的有用筛选工具。但是,阴性结果可能需要更高灵敏度的确证分析。

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