Pan-serotypic detection of foot-and-mouth disease virus by RT linear-after-the-exponential PCR

Reid, Scott M., Pierce, Kenneth E., Mistry, Rohit, Bharya, Sukvinder, Dukes, Juliet P., Volpe, Carmelo, Wangh, Lawrence J. and King, Donald P. (2010) Pan-serotypic detection of foot-and-mouth disease virus by RT linear-after-the-exponential PCR. Molecular and Cellular Probes, 24(5), pp. 250-255. ISSN (print) 0890-8508

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A reverse transcription Linear-After-The-Exponential polymerase chain reaction (RT LATE-PCR) assay was evaluated for detection of foot-and-mouth disease virus (FMDV). This pan-serotypic assay targets highly conserved sequences within the 3D (RNA polymerase) region of the FMDV genome, and uses end-point hybridisation analysis of a single mismatch-tolerant low temperature probe to confirm the identity of the amplicons. An Armored RNA served as an internal control to validate virus negative results. The ability of the assay to identify FMDV was directly compared to a real-time RT-PCR assay routinely used by reference laboratories. The analytical sensitivity of the RT LATE-PCR assay was 10 genomic copies and the dynamic range of the test was identical to real-time RT-PCR based on decimal dilutions of an FMDV-positive sample. This pan-serotypic assay was able to detect FMDV in a broad range of clinical samples collected from field cases of FMD (n = 121), while samples of other viruses causing vesicular disease in livestock and genetic relatives of FMDV were negative. In addition to the laboratory-based utility of this diagnostic test, the RT LATE-PCR assay format has potential application for use in a portable ("point-of-care") device designed to achieve rapid detection of FMDV in the field.

Item Type: Article
Additional Information: This work was supported by Defra [grant numbers SE1121 and SE1124].
Research Area: Health services research
Faculty, School or Research Centre: Faculty of Science, Engineering and Computing (until 2017) > School of Life Sciences
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Depositing User: Gemma Sansom
Date Deposited: 02 Jan 2013 15:42
Last Modified: 02 Jan 2013 15:43

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