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Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: A portable reverse transcription recombinase polymerase amplification assay for rapid detection of foot-and-mouth disease virus
Author(s): El Wahed, Ahmed Abd
El-Deeb, Ayman
El-Tholoth, Mohamed
El Kader, Hanaa Abd
Ahmed, Abeer
Hassan, Sayed
Hoffmann, Bernd
Haas, Bernd
Shalaby, Mohamed A
Hufert, Frank T
Weidmann, Manfred
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Issue Date: Aug-2013
Date Deposited: 2-Apr-2014
Citation: El Wahed AA, El-Deeb A, El-Tholoth M, El Kader HA, Ahmed A, Hassan S, Hoffmann B, Haas B, Shalaby MA, Hufert FT & Weidmann M (2013) A portable reverse transcription recombinase polymerase amplification assay for rapid detection of foot-and-mouth disease virus. PLoS ONE, 8 (8), Art. No.: e71642.
Abstract: Foot-and-mouth disease (FMD) is a trans-boundary viral disease of livestock, which causes huge economic losses and constitutes a serious infectious threat for livestock farming worldwide. Early diagnosis of FMD helps to diminish its impact by adequate outbreak management. In this study, we describe the development of a real-time reverse transcription recombinase polymerase amplification (RT-RPA) assay for the detection of FMD virus (FMDV). The FMDV RT-RPA design targeted the 3D gene of FMDV and a 260 nt molecular RNA standard was used for assay validation. The RT-RPA assay was fast (4-10 minutes) and the analytical sensitivity was determined at 1436 RNA molecules detected by probit regression analysis. The FMDV RT-RPA assay detected RNA prepared from all seven FMDV serotypes but did not detect classical swine fever virus or swine vesicular disease virus. The FMDV RT-RPA assay was used in the field during the recent FMD outbreak in Egypt. In clinical samples, reverse transcription polymerase chain reaction (RT-PCR) and RT-RPA showed a diagnostic sensitivity of 100% and 98%, respectively. In conclusion, FMDV RT-RPA was quicker and much easier to handle in the field than real-time RT-PCR. Thus RT-RPA could be easily implemented to perform diagnostics at quarantine stations or farms for rapid spot-of-infection detection.
DOI Link: 10.1371/journal.pone.0071642
Rights: © 2013 Abd El Wahed et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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