1977年以来流感病毒在我国人群中活动的特点

Characteristics of Variations of Influenza Viruses in China Since 1977

摘要: 本文介绍了1977年以来流感在我国活动的特点及毒株变异情况，发现了甲₃型毒株的RNA迁移状态有长短两个形式，而甲₁型仅有一种形式。同时发现RNA分布状态与毒株能否在人群中造成流行有密切关系，并认为近期内甲₂型（H₂N₂）毒株在人群中重新出现的可能性不大。

Abstract: The characteristics of variations of iafluettza virus strains is　China since 19?7 were presented in this paper,It was found that there were two forms of RNA migrating pattern.among A₃ type strains, while there was only one form smone A₁ type strains.