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- Yamagata系Yamagata lineage
- 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%.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%25.
- Victoria系易变区抗原表位有6个位点氨基酸不同于B/Hongkong/330/2001,Yamagata系易变区抗原表位有3个位点氨基酸不同于B/Beijing/76/98,有10个位点不同于B/Sichuan/379/99。Victoria-lineage strains compared with B/Hongkong/330/2001 had six mutation points in antigenic determinants within amplified region,Yamagata-lineage strains compared with B/Beijing/76/98 had three mutation points,and with B/Sichuan/379/99 had ten.
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