Detection and differentiation of wild-type and vaccine strains of canine distemper virus by a duplex reverse transcription polymerase chain reaction

Dong, X. Y.; Li, W. H.; Zhu, J. L.; Liu, W. J.; Zhao, M. Q.; Luo, Y. W.; Chen, J. D.

doi:10.22099/ijvr.2015.3197

Detection and differentiation of wild-type and vaccine strains of canine distemper virus by a duplex reverse transcription polymerase chain reaction

Document Type : Full paper (Original article)

Authors

¹ Department of Preventive Veterinary Medicine, College of Veterinary Medicine, South China Agricultural University, Tian He District, Guangzhou 510642, China

² MSc in Virus, Department of Preventive Veterinary Medicine, College of Veterinary Medicine, South China Agricultural University, Tian He District, Guangzhou 510642, China

³ BSc in Virus, Department of Preventive Veterinary Medicine, College of Veterinary Medicine, South China Agricultural University, Tian He District, Guangzhou 510642, China

⁴ MSc in Vaccine, Department of Preventive Veterinary Medicine, College of Veterinary Medicine, South China Agricultural University, Tian He District, Guangzhou 510642, China

10.22099/ijvr.2015.3197

Abstract

Canine distemper virus (CDV) is the cause of canine distemper (CD) which is a severe and highly contagious disease in dogs. In the present study, a duplex reverse transcription polymerase chain reaction (RT-PCR) method was developed for the detection and differentiation of wild-type and vaccine strains of CDV. Four primers were designed to detect and discriminate the two viruses by generating 638- and 781-bp cDNA products, respectively. Furthermore, the duplex RT-PCR method was used to detect 67 field samples suspected of CD from Guangdong province in China. Results showed that, 33 samples were to be wild-type-like. The duplex RT-PCR method exhibited high specificity and sensitivity which could be used to effectively detect and differentiate wild-type and vaccine CDV, indicating its use for clinical detection and epidemiological surveillance.