An optimized method to detect influenza virus and human rhinovirus from exhaled breath and the airborne environment.

An optimized method to detect influenza virus and human rhinovirus from exhaled breath and the airborne environment.
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DOI:
10.1039/b813520g
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发表时间:
2009-02
期刊:
Journal of environmental monitoring : JEM
影响因子:
--
通讯作者:
Milton DK
Milton DK
中科院分区:
其他
文献类型:
--
作者:
Fabian P;McDevitt JJ;Lee WM;Houseman EA;Milton DK

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由于呼吸道病毒浓度低且存在多种抑制剂,因此难以在空气环境中对其进行表征。作为研究空气传播病毒的第一步,我们优化了量化流感病毒和人类鼻病毒的分子生物学方法。使用定量PCR作为终点来评价RNA提取技术和逆转录方案。我们发现,与已发表的空气传播呼吸道病毒现场研究中使用的方法相比,Trizol-氯仿提取和MultiScribe™ RT将病毒检测提高了10倍。从受高达50 μg/样品不溶性微粒污染的样品中回收病毒,无抑制作用。所建立的方法可用于研究空气传播的呼吸道病毒。
Respiratory viruses are difficult to characterize in the airborne environment due to their low concentration and the presence of a wide range of inhibitors. As a first step in studying airborne viruses, we optimized molecular biology methods to quantify influenza viruses and human rhinovirus. Quantitative PCR was used as an endpoint to evaluate RNA extraction techniques and reverse transcription protocols. We found that a Trizol-chloroform extraction and MultiScribe™ RT increased virus detection 10-fold compared to methods used in published field studies of airborne respiratory viruses. Virus was recovered without inhibition from samples contaminated with up to 50 μg/sample of particulate matter. The methods developed can be used in studies of airborne respiratory viruses.
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