The genetic characteristics of Canine distemper virus isolated from infected dogs at the Veterinary Clinic, Can Tho University

Abstract

The study on genetic characteristics of 7 strains of Canine distemper virus isolated from the infection dogs at the Veterinary Clinic, Can Tho University was conducted via sequencing the H gene, and comparing the sequence of nucleotides, amino acids between the surveyed strains and the field/vaccine strains published on the GenBank. The studied results showed that these virus strains could be the same origin, and circulated frequently in the study area
with a high similarity levels (99.82–99.96%). Moreover, the similarity levels on nucleotides of the isolated strains with the other strains on the GenBank were 93.26–99.56%, and with the vaccine strains on the GenBank were 96.72–97.08%. The Canine distemper virus strains isolated from the infected dogs in this study belonged to the genotype Asia 1, circulating commonly in Viet Nam and Asian countries. The results of this study contribute the basis information for adjusting and selecting the appropriate vaccines against Canine distemper
virus in Viet Nam.