期刊
JOURNAL OF INFECTIOUS DISEASES
卷 214, 期 -, 页码 S243-S249出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/infdis/jiw246
关键词
Filovirus; Ebola virus disease; commercial RT-PCR kit; molecular diagnostics; sensitivity
资金
- European Union's Horizon 2020 research and innovation program [666100]
- Directorate-General for International Cooperation and Development [IFS/2011/272-372]
- European Fund for Regional Development (EFRE project) [BWF/H/52228/2012/13.10.10-1/3.4,6]
Background. Diagnosis of Ebola virus (EBOV) disease (EVD) requires laboratory testing. Methods.aEuro integral The RealStar Filovirus Screen reverse transcription-polymerase chain reaction (RT-PCR) kit and the derived RealStar Zaire Ebolavirus RT-PCR kit were validated using in vitro transcripts, supernatant of infected cell cultures, and clinical specimens from patients with EVD. Results.aEuro integral The Filovirus Screen kit detected EBOV, Sudan virus, Ta < Forest virus, Bundibugyo virus, Reston virus, and Marburg virus and differentiated between the genera Ebolavirus and Marburgvirus. The amount of filovirus RNA that could be detected with a probability of 95% ranged from 11 to 67 RNA copies/reaction on a LightCycler 480 II. The Zaire Ebolavirus kit is based on the Filovirus Screen kit but was optimized for detection of EBOV. It has an improved signal-to-noise ratio at low EBOV RNA concentrations and is somewhat more sensitive than the Filovirus kit. Both kits show significantly lower analytical sensitivity on a SmartCycler II. Clinical evaluation revealed that the SmartCycler II, compared with other real-time PCR platforms, decreases the clinical sensitivity of the Filovirus Screen kit to diagnose EVD at an early stage. Conclusions.aEuro integral The Filovirus Screen kit detects all human-pathogenic filoviruses with good analytical sensitivity if performed on an appropriate real-time PCR platform. High analytical sensitivity is important for early diagnosis of EVD.
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