The virus is not killed so it's a live virus, which is actually going to infect your intestinal system and reproduce.

病毒没有被杀死，所以它是活病毒，它会感染你的肠道系统并繁殖。

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Crucially, the scientists were also able to isolate and culture a live virus that binds to a receptor on a human cell.

科学家随后成功分离并培养出可以与人类细胞受体相结合的活病毒。

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This ensures that there is no active virus remaining if the live bird has been infected and has mistakenly entered the food chain.

这可确保如果活禽受到感染并错误地进入食物链，不存在有效的病毒。

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Using live virus in vaccines can increase the risks.

VOA: special.2010.07.12

The virus is not killed so It's a live virus, which is actually going to infect your intestinal system and reproduce.

病毒没有被杀死,那么它就是活性病毒,也就意味着它将会,侵入你的肠道系统并且会繁殖

耶鲁公开课 - 生物医学工程探索课程节选

So, you couldn't introduce the live virus in because that would cause the disease not just immunity.

所以 不可以直接接种活体病毒,因为这会使人致病而不仅是引起免疫应答

耶鲁公开课 - 生物医学工程探索课程节选

Because this vaccine contains a live virus, the CDC maintains a surveillance system to watch for human infections.

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It is a live virus preparation developed in the United States by...

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The inhalable form is not recommended for pregnant women and children younger than two years of age because it contains a live virus.

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