The new vaccine, which is different from the annual flu vaccine, is available ahead of expectations.

与每年的流感疫苗不同的是，这种新疫苗提前上市了。

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There is no cure for either illness, but the flu can be prevented by the flu vaccine, which is, for most people, the best way to fight the flu.

两种疾病都无法治愈，但是可以通过流感疫苗预防流感。对于大多数人来说，这是对抗流感的最佳方法。

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It is an NHS board responsibility that we do not find ourselves in this position with the swine flu vaccine.

国民保健署董事会的责任就是让我们在猪流感接种上不能再出现同样的情况。

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But last week, two teams working independently reported a discovery that could help lead to a universal flu vaccine.

VOA: special.2009.03.04

The traditional way to make flu vaccine is to grow the virus in chicken eggs.

VOA: special.2009.11.11

The standard flu vaccine causes the body to produces antibodies, which target parts of the virus that frequently mutate.

VOA: standard.2010.07.21

Drugmakers around the world are rushing to produce the swine flu vaccine by this fall.

FORBES: Market Scan

Authorities earlier had said the flu vaccine was 62% effective for adults and children.

CNN: Flu vaccine less effective, especially among elderly

Generally a flu vaccine is considered pretty good if it's more than 60 percent effective.

NPR: Q&A: Weighing The Value Of Less Effective Flu Shot