评估麻疹诊断实时 RT-PCR 检测法的灵敏度，其中包含最近观察到的引物错配变体，2024 年

IF 9.9 2区医学 Q1 INFECTIOUS DISEASES Eurosurveillance Pub Date : 2024-07-11 DOI:10.2807/1560-7917.es.2024.29.28.2400410

Andrew S Beck, Elena N Lopareva, Hyun Hwang, Derek Hart, Marcos de Almeida, Raydel Anderson, Paul A Rota, Bettina Bankamp

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引用次数: 0

摘要

我们研究了麻疹病毒的一个变异体，该变异体在广泛使用的实时 RT-PCR 诊断测定的反向引物位点上编码了三个错配；假设该变异体会降低灵敏度。我们利用硅学数据、合成 RNA 模板和临床标本检验了该变异检测方法的性能。结果发现，在低拷贝数模板编码变异序列时，灵敏度会降低。我们设计并测试了另一种引物策略，从而恢复了测定的灵敏度。

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Evaluation of the sensitivity of a measles diagnostic real-time RT-PCR assay incorporating recently observed priming mismatch variants, 2024

We investigated a variant of measles virus that encodes three mismatches to the reverse priming site for a widely used diagnostic real-time RT-PCR assay; reduction of sensitivity was hypothesised. We examined performance of the assay in context of the variant using in silico data, synthetic RNA templates and clinical specimens. Sensitivity was reduced observed at low copy numbers for templates encoding the variant sequence. We designed and tested an alternate priming strategy, rescuing the sensitivity of the assay.

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来源期刊

Eurosurveillance INFECTIOUS DISEASES-

CiteScore

32.70

自引率

2.10%

发文量

430

审稿时长

3-8 weeks

期刊介绍： Eurosurveillance is a European peer-reviewed journal focusing on the epidemiology, surveillance, prevention, and control of communicable diseases relevant to Europe.It is a weekly online journal, with 50 issues per year published on Thursdays. The journal includes short rapid communications, in-depth research articles, surveillance reports, reviews, and perspective papers. It excels in timely publication of authoritative papers on ongoing outbreaks or other public health events. Under special circumstances when current events need to be urgently communicated to readers for rapid public health action, e-alerts can be released outside of the regular publishing schedule. Additionally, topical compilations and special issues may be provided in PDF format.