Comparison between O/LZ and other reference isolates indicates that O/LZ strain have a close evolutionary relationship with O/HNK/2002,O/ES/2001,O/CHP/TW/97,etc,O/LZ should be classified to Cathay topotype.

• 将O/LZ株与其它参考毒株进行序列比较,结果显示O/LZ株与O/HNK/2002、O/ES/2001、O/CHP/TW/97等遗传关系最近,而与其它毒株遗传关系较远,属于O型口蹄疫Cathay拓扑型。