At that time scientists knew that antibodies from people infected by the 1968 pandemic virus also reacted with an influenza strain isolated in 1963 from flu-ridden ducks.

 
  • 那時(shí)科學(xué)家已經(jīng)知道,來(lái)自1968年流感患者體內的抗體,同時(shí)可作用于1963年從帶有流感病毒的鴨子體內所分離出來(lái)的病毒株。
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