中文摘要：

本试验对1株犬源H3N2亚型流感病毒（A／caninejGuangdong/10／2014）进行了遗传进化分析。结果显示，本毒株8个基因片段与在中国和泰国分离的H3N2亚型犬流感的关系最近，与当前亚洲分离的毒株高度相似（〉99％）。基因亚型分析显示8个基因片段和目前流行的H3N2CIVs有相同的基因型（K，G，E，3B，F，2D，F，1E）。本毒株为低致病性的禽源HgN2亚型犬流感，从而证实了禽源犬流感亚型在中国的存在，对流感病毒实施广泛的血清学和流行病学检测，以及对该病的防控具有重要意义。

英文摘要：

One H3N2 caine influenza vius,A/Caine/Guangdong/10/2014,was isolated from dog in 2014. Phylogenetic analysis indicated that the genes from the virus were closely related to those of avian origin,H3N2 subtype CIVs from China and Thailand. Genetic analysis of eight genes re- vealed that the H3N2 canine influenza isolate was highly similar （〉99%） to the current common strains in Asia. Analysis of the genotype demonstrated that each gene of the strain in this study had the same genotypes （K,G,E,3B,F,2D,F,1E） as those prevalent in H3N2 CIVs. Our findings further confirm that avian-origin H3N2 canine influenza is exist in China. Conducting extensive se rological and epidemiological surveillance is necessary to develop an effective vaccine against this disease.