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Comparison of a direct immunofluorescence assay (Oxoid IMAGEN®) and a multiplex RT-PCR DNA microarray assay (CLART® PneumoVir) for the detection of respiratory viruses in hospitalized children.
Journal of Virological Methods ( IF 3.1 ) Pub Date : 2020-07-11 , DOI: 10.1016/j.jviromet.2020.113930
Isabel Cristina Schutz Ferreira 1 , Ana Paula Alegretti 2 , Fernanda De Paris 2 , Rodrigo Minuto Paiva 2 , Valentina Coutinho Baldoto Gava Chakr 3
Affiliation  

The objective of this study was to compare the positive detection rates obtained using the Oxoid IMAGEN® direct immunofluorescence assay (designated as IF) with those obtained using the CLART® PneumoVir multiplex RT-PCR DNA microarray assay (designated as RT-PCR) in the diagnosis of respiratory viruses in hospitalized children. This was a retrospective study of 62 individuals < 18 years old who had nasopharyngeal aspirates collected for virus identification in a tertiary university hospital in south Brazil between January 1st, 2014 and December 31st, 2014. All 62 nasopharingeal aspirates were analyzed using both assay methods. The main outcome to be measured was the difference in the proportion of test samples returning a positive virus detection result between the IF and the RT-PCR. The McNemar test was used for data analysis and the results showed that the RT-PCR and the IF methods produced 55 (88.7 %) and 17 (27.4 %) virus-positive samples, respectively (p < 0.001). The most prevalent virus was rhinovirus (45.5 % of the RT-PCR positive samples). The RT-PCR method increased the detection rates of human respiratory syncytial virus, influenza A virus and parainfluenza 3 virus. The RT-PCR and IF had concordant results in 19 samples (30.6 %) and discordant results in 43 samples (69.4 %). It is concluded that in comparison to the Oxoid IMAGEN® IF method, the CLART® PneumoVir multiplex RT-PCR method had a greater potential to contribute to the clinical management of hospitalized children due its greater ability in detecting respiratory viruses than the IF method.



中文翻译:

直接免疫荧光测定法(OxoidIMAGEN®)和多重RT-PCR DNA微阵列测定法(CLART®PneumoVir)在住院儿童中检测呼吸道病毒的比较。

这项研究的目的是比较使用OxoidIMAGEN®直接免疫荧光测定法(称为IF)和使用CLART®PneumoVir多重RT-PCR DNA微阵列测定法(称为RT-PCR)获得的阳性检出率。诊断住院儿童呼吸道病毒。这是一项回顾性研究,对2014年1月1日至2014年12月31日期间在巴西南部一家三级大学医院中收集的用于识别病毒的62例18岁以下的鼻咽抽吸物进行了分析。使用这两种测定方法对所有62支鼻咽抽吸物进行了分析。要测量的主要结果是在IF和RT-PCR之间返回阳性病毒检测结果的测试样品比例的差异。使用McNemar测试进行数据分析,结果表明RT-PCR和IF方法分别产生了55(88.7%)和17(27.4%)病毒阳性样品(p <0.001)。最流行的病毒是鼻病毒(占RT-PCR阳性样本的45.5%)。RT-PCR方法提高了人类呼吸道合胞病毒,甲型流感病毒和副流感3病毒的检出率。RT-PCR和IF在19个样品中的结果一致(30.6%),在43个样品中的结果不一致(69.4%)。结论是,与OxoidIMAGEN®IF方法相比,CLART®PneumoVir多重RT-PCR方法比IF方法具有更大的潜力,可更好地为住院儿童的临床管理做出贡献。分别为7%和17(27.4%)病毒阳性样品(p <0.001)。最流行的病毒是鼻病毒(占RT-PCR阳性样本的45.5%)。RT-PCR方法提高了人类呼吸道合胞病毒,甲型流感病毒和副流感3病毒的检出率。RT-PCR和IF在19个样品中的结果一致(30.6%),在43个样品中的结果不一致(69.4%)。结论是,与OxoidIMAGEN®IF方法相比,CLART®PneumoVir多重RT-PCR方法比IF方法具有更大的潜力,可更好地为住院儿童的临床管理做出贡献。分别为7%和17(27.4%)病毒阳性样品(p <0.001)。最流行的病毒是鼻病毒(占RT-PCR阳性样本的45.5%)。RT-PCR方法提高了人类呼吸道合胞病毒,甲型流感病毒和副流感3病毒的检出率。RT-PCR和IF在19个样品中的结果一致(30.6%),在43个样品中的结果不一致(69.4%)。结论是,与OxoidIMAGEN®IF方法相比,CLART®PneumoVir多重RT-PCR方法比IF方法具有更大的潜力,可更好地为住院儿童的临床管理做出贡献。RT-PCR方法提高了人类呼吸道合胞病毒,甲型流感病毒和副流感3病毒的检出率。RT-PCR和IF在19个样品中的结果一致(30.6%),在43个样品中的结果不一致(69.4%)。结论是,与OxoidIMAGEN®IF方法相比,CLART®PneumoVir多重RT-PCR方法比IF方法具有更大的潜力,可更好地为住院儿童的临床管理做出贡献。RT-PCR方法提高了人类呼吸道合胞病毒,甲型流感病毒和副流感3病毒的检出率。RT-PCR和IF在19个样品中的结果一致(30.6%),在43个样品中的结果不一致(69.4%)。结论是,与OxoidIMAGEN®IF方法相比,CLART®PneumoVir多重RT-PCR方法比IF方法具有更大的潜力,可更好地为住院儿童的临床管理做出贡献。

更新日期:2020-07-17
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