Molecular diagnosis of African swine fever by a new real-time PCR using Universal Probe Library

Show simple item record Fernández-Pinero, J. Gallardo, C. Elizalde, M. Robles, A. Gómez, C. Bishop, Richard P. Heath, Livio Edward Couacy-Hymann, E. Fasina, Folorunso Oludayo Pelayo, V. Soler, A. Arias, M. 2014-09-05T05:35:52Z 2014-09-05T05:35:52Z 2013-02
dc.description.abstract A highly sensitive and specific real-time PCR method was developed for the reliable and rapid detection of African swine fever virus (ASFV). The method uses a commercial Universal Probe Library (UPL) probe combined with a spe-cifically designed primer set to amplify an ASFV DNA fragment within the VP72 coding genome region. The detection range of the optimized UPL PCR technique was confirmed by analysis of a large panel (n = 46) of ASFV isolates, belonging to 19 of the 22 viral p72 genotypes described. No amplification signal was observed when closely clinically related viruses, such as classical swine fever, or other porcine pathogens were tested by this assay. The detection limit of the UPL PCR method was established below 18 DNA copies. Validation experi-ments using an extensive collection of field porcine and tick samples (n = 260), coming from Eastern and Western African regions affected by ASF, demon-strated that the UPL PCR technique was able to detect over 10% more positive samples than the real-time TaqMan PCR test recommended in the OIE manual, confirming its superior diagnostic sensitivity. Clinical material collected during experimental infections with different ASFV p72 genotypes was useful for assur-ing both the capacity of the UPL PCR for an early viral DNA detection and the competence of the technique to be applied in any ASF diagnostic target sample. The reliability and robustness of the UPL PCR was finally verified with a panel of ASFV-infected clinical samples which was repeatedly tested at different times. Additionally, an internal control PCR assay was also developed and standard-ized using UPL probes within the endogenous b-actin gene. Finally, the com-plete study offers a new validated real-time PCR technique, by means of a standardized commercial probe, providing a simple, rapid and affordable test, which is ready for application in the routine diagnosis of ASF. en_US
dc.description.librarian hb2014 en_US
dc.description.sponsorship EU Seventh Framework Program under grant agreement KBBE-2007-1-3-05 no. 211691. This work has also been partially funded by the European Union Reference Laboratory for African Swine Fever (DG-SANCO-EC), the Spanish INIA-MARM Agreement (CC08-020) and the EU Network of Excellence EPIZONE (contract no.FOOD-CT-2006-016236) en_US
dc.description.uri en_US
dc.identifier.citation Fernández-Pinero, J, Gallardo, C, Elizalde, M, Robles, A, Gómez, C, Bishop, R, Heath, L, Couacy-Hymann, E, Fasina, FO, Pelayo, V, Soler, A & Arias, M 2013, 'Molecular diagnosis of African swine fever by a new real-time PCR using Universal Probe Library', Transboundary and Emerging Diseases, vol. 60, no. 1, pp. 48-58. en_US
dc.identifier.issn 1865-1674 (print)
dc.identifier.issn 1865-1682 (online)
dc.identifier.other 10.1111/j.1865-1682.2012.01317.x
dc.identifier.other 16416667800
dc.identifier.other H-9699-2013
dc.language.iso en en_US
dc.publisher Wiley en_US
dc.relation.requires Adobe Acrobat Reader en
dc.rights © 2013 Blackwell Verlag GmbH. This is the pre-peer reviewed version of the following article : Molecular diagnosis of African swine fever by a new real-time PCR using Universal Probe Library, Transboundary & Emerging Diseases, vol. 60, no. 1, pp. 48-58, 2013, doi : 10.1111/j.1865-1682.2012.01317.x. The definite version is available at : en_US
dc.subject Real-time PCR en_US
dc.subject Molecular diagnosis en_US
dc.subject African swine fever virus en_US
dc.subject Universal Probe Library en_US
dc.subject Polymerase chain reaction en_US
dc.subject ASFV
dc.subject PCR
dc.subject UPL
dc.title Molecular diagnosis of African swine fever by a new real-time PCR using Universal Probe Library en_US
dc.type Postprint Article en_US

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