Keywords Influenza surveillance;Influenza viruses;Avian influenza viruses;Hemagglutinin;Hemagglutinin inhibitor antibody;Antigenic variation;Phylogenesis analysis;

 
  • 流感监测;流感病毒;禽流感;血凝素;血凝抑制抗体;抗原变异;系统发生分析;
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