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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This increased the number of targets available to vaccine developers and led directly to the development of Novartis's new meningitis-B vaccine, for example.

这为疫苗研发者提供了更多免疫靶点，从而促使其开发出更多疫苗品种，比如诺华制药新推出的乙型脑膜炎病毒疫苗。

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Selection and identification of B-cell epitopes are important for tumor vaccine designing.

因此，筛选并鉴定肿瘤B细胞表位对肿瘤疫苗设计具有重要意义。

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Read said Pfizer's mid- to late-stage drug pipeline "continues to strengthen with key potential opportunities, " including drugs for advanced breast cancer and three other types of cancer, one for high cholesterol and a meningococcal B vaccine for adolescents and young adults.

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There are five separate types of "B" meningitis, and potentially a vaccine could be effective against all of them.

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Hepatitis C has been described as an "approaching epidemic" - and unlike hepatitis A and B, there is no vaccine against it.

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