两分离株核苷酸序列同源性较低,为88.2%,但氨基酸序列同源性较高,为93.9%。

• However, between two isolated strong virulent strains, there was a low homogeneity of 88.2%25 in nucleotide, and there was a high homogeneity of 93.9%25 in amino acid residue.