About: The aim of this study was to establish a multiplex PCR (mPCR) method that can simultaneously detect canine parvovirus (CPV-2), canine coronavirus (CCoV) and canine adenovirus (CAV), thereby eliminating the need to detect these pathogens individually. Based on conserved regions in the genomes of these three viruses, the VP2 gene of CPV-2, the endoribonuclease nsp15 gene of CCoV, and the 52K gene of CAV were selected for primer design. The specificity of the mPCR results showed no amplification of canine distemper virus (CDV), canine parainfluenza virus (CPIV), or pseudorabies virus (PRV), indicating that the method had good specificity. A sensitivity test showed that the detection limit of the mPCR method was 1 × 10(4) viral copies. A total of 63 rectal swabs from dogs with diarrheal symptoms were evaluated using mPCR and routine PCR. The ratio of positive samples to total samples for CPV-2, CCoV, and CAV was 55.6% (35/63) for mPCR and 55.6% (35/63) for routine PCR. Thirty-five positive samples were detected by both methods, for a coincidence ratio of 100%. This mPCR method can simultaneously detect CCoV (CCoV-II), CAV (CAV-1, CAV-2) and CPV-2 (CPV-2a, CPV-2b, CPV-2c), which are associated with viral enteritis, thereby providing an efficient, inexpensive, specific, and accurate new tool for clinical diagnosis and laboratory epidemiological investigations.   Goto Sponge  NotDistinct  Permalink

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  • The aim of this study was to establish a multiplex PCR (mPCR) method that can simultaneously detect canine parvovirus (CPV-2), canine coronavirus (CCoV) and canine adenovirus (CAV), thereby eliminating the need to detect these pathogens individually. Based on conserved regions in the genomes of these three viruses, the VP2 gene of CPV-2, the endoribonuclease nsp15 gene of CCoV, and the 52K gene of CAV were selected for primer design. The specificity of the mPCR results showed no amplification of canine distemper virus (CDV), canine parainfluenza virus (CPIV), or pseudorabies virus (PRV), indicating that the method had good specificity. A sensitivity test showed that the detection limit of the mPCR method was 1 × 10(4) viral copies. A total of 63 rectal swabs from dogs with diarrheal symptoms were evaluated using mPCR and routine PCR. The ratio of positive samples to total samples for CPV-2, CCoV, and CAV was 55.6% (35/63) for mPCR and 55.6% (35/63) for routine PCR. Thirty-five positive samples were detected by both methods, for a coincidence ratio of 100%. This mPCR method can simultaneously detect CCoV (CCoV-II), CAV (CAV-1, CAV-2) and CPV-2 (CPV-2a, CPV-2b, CPV-2c), which are associated with viral enteritis, thereby providing an efficient, inexpensive, specific, and accurate new tool for clinical diagnosis and laboratory epidemiological investigations.
Subject
  • Virology
  • Animal virology
  • Dog diseases
  • Molecular biology
  • Taxa named by Carl Linnaeus
  • EC 3.1.26
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