title: Rapid and specific detection of porcine parvovirus using real-time PCR and high resolution melting (HRM) analysis.
abstract: BACKGROUND
  Porcine parvovirus (PPV) is the important causative agent for infectious infertility, which is a fairly tough virus that multiplies normally in the intestine of pigs without causing clinical signs in the world.
  
  
  RESULTS
  We developed an assay integrating real-time PCR and high resolution melting (HRM) analysis for the detection of PPV. Primers targeting the VP gene were highly specific, as evidenced by the negative amplification of closely related viruses, such as porcine circovirus 2 (PCV2), porcine reproductive and respiratory syndrome virus (PRRSV), pseudorabies virus (PRV), classical swine fever virus (CSFV), or Japanese encephalitis virus (JEV). The performance of unlabeled real time PCR was compared to TaqMan real time PCR, and the detection limits of the two methods were nearly equal. Moreover, there was good correlation between Cp and diluted genomic DNA when tested with the two methods. The assay has the accuracy of 100% in reference to labeled real time PCR, when it was tested on 45 clinical samples.
  
  
  CONCLUSIONS
  The present study demonstrated that the established assay integrating real-time PCR and HRM is relatively cost-effective and more stable, which provides an alternative tool for rapid, simple, specific and sensitive detection of PPV.
authors: Technical Center, Guangdong Entry-Exit Inspection and Quarantine Bureau, Guangzhou, Guangdong Province, 510630, PR China. haiqiongyu@139.com.
authors: Hai-Qiong
authors: HQ
authors: Yu
authors: Technical Center, Zhongshan Entry-Exit Inspection and Quarantine Bureau, Zhongshan, Guangdong Province, 528403, PR China. caixianquan@126.com.
authors: Xian-Quan
authors: XQ
authors: Cai
authors: Technical Center, Guangdong Entry-Exit Inspection and Quarantine Bureau, Guangzhou, Guangdong Province, 510630, PR China. 13922289528@139.com.
authors: Zhi-Xiong
authors: ZX
authors: Lin
authors: Zhongshan Torch Polytechnic College, Zhongshan, Guangdong Province, 528403, PR China. cap1025@sina.com.
authors: Xiang-Li
authors: XL
authors: Li
authors: Technical Center, Zhongshan Entry-Exit Inspection and Quarantine Bureau, Zhongshan, Guangdong Province, 528403, PR China. 914529077@qq.com.
authors: Qiao-Yun
authors: QY
authors: Yue
authors: Technical Center, Zhongshan Entry-Exit Inspection and Quarantine Bureau, Zhongshan, Guangdong Province, 528403, PR China. lir@zs.gdciq.gov.cn.
authors: Rong
authors: R
authors: Li
authors: State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, PR China. xingquanzhu1@hotmail.com.
authors: Xing-Quan
authors: XQ
authors: Zhu
mesh_terms: D000818:Animals; D004279:DNA, Viral / Q000235:genetics; D007668:Kidney / Q000821:virology; D057230:Limit of Detection; D008099:Liver / Q000821:virology; D008168:Lung / Q000821:virology; D009691:Nucleic Acid Denaturation; D010322:Parvoviridae Infections / Q000175:diagnosis / Q000662:veterinary*; D028323:Parvovirus, Porcine / Q000235:genetics; D060888:Real-Time Polymerase Chain Reaction / Q000662:veterinary*; D012680:Sensitivity and Specificity; D013154:Spleen / Q000821:virology; D013552:Swine / Q000821:virology; D013553:Swine Diseases / Q000175:diagnosis* / Q000821:virology
chemical_list: D004279:DNA, Viral