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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Results 41 of 45 isolates (91%) Shared the same genotype with HEV Burma strain (B), with nucleotide identities higher than 98% with the representative HEV Chinese strain.

结果45株散发性戊型肝炎病毒(HEV)中，41株(91%)与缅甸株(B)属同一个基因型，与典型中国株hev核苷酸序列的同源性均在98%以上。

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But against a particular strain of Influenza B, the vaccine is proving completely ineffective.

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This particular strain of Coxsackie B causes myocarditis, or inflammation of the heart.

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