This year’s seasonal vaccine contains three influenza viruses — one A (H3N2) virus, one regular seasonal A (H1N1) virus unrelated to the swine flu strain and one B virus.

今年的季节流感疫苗含有三种流感病毒——一种甲型（H3N2）病毒，一种与猪流感毒株无关的常规季节性甲型（H1N1）病毒，以及一种乙型病毒。

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The new virus contains genes from a seasonal human H1N1 flu strain and a flu virus common in swine and called H3N2. The new strand is not related to the current H1N1 pandemic influenza strain.

这种病毒由季节性h1n 1人流感病毒和H3N 2猪流感病毒混合而成，但与正在全球流行的甲型H1N 1流感病毒没有联系。

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Experiments in Geneva involved two common influenza viruses: H3N2 and H1N1, the virus that triggered a global flu pandemic in 2009.

在日内瓦进行的这项实验采用了两种常见的流感病毒：H3N2和H1N1，后者曾在2009年引发全球流感大流行。

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This year's North American vaccine is made from three viruses: two types of influenza A virus (H3N2 and H1N1) and an influenza B virus.

CNN: Had a flu shot? You'll be OK -- maybe

As of January 5, the CDC said Friday, the predominant virus in the United States was an influenza A (H3N2) virus that matched well with the H3N2 virus represented in the vaccine.

CNN: Had a flu shot? You'll be OK -- maybe