Question: How long does the hepatitis virus live outside the body?

问：肝炎病毒在体外能够存活多久？

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They said tests in mice showed that their new vaccines are safer than live-virus vaccines and appear to work just as well.

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

Nearly three quarters of all HIV carriers and almost 90% of the children infected with the virus live in Sub-Saharan Africa.

UNESCO: Natural Sciences

But this is not necessarily a negative trend, because new treatments - although not providing a cure - are allowing those with the virus to live much longer before contracting full-blown Aids.

BBC: US HIV cases 'on the rise'

Killing the virus with, for example, formaldehyde, leaves a platform that presents gp120 to the immune system much as a live virus does.

ECONOMIST: Recipes for an AIDS vaccine | The