Especially, Yamagata lineages viruses were more frequently, our Ningbo 2005 isolates differed by 7 amino acids from Shanghai/01/2000, the homology were 97.6%.

• 2005年分离到的Yamagata系乙型流感与Shanghai/01/2000株相已经有7个氨基酸被替代； 它们的同源性只有97.；6%25