More than 250 million children have been immunized.

VOA: standard.2010.01.29

You've all been immunized for Hepatitis B, would you be happy to hear that that's where your Hepatitis B vaccine came from?

你们都对乙型肝炎具有免疫力了,如果你知道你的乙型肝炎疫苗,是从何而来的话,你还会高兴的起来吗

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For any one of us it costs $153 - $156 to be immunized.

对于我们来说,花费一百五十三到一百五十六美元,才能获得免疫

耶鲁公开课 - 生物医学工程探索课程节选

There are even some military personnel now who get immunized against smallpox in the event that when they're going into areas, they might be exposed when they're in combat areas.

现在有些军人甚至已经接种天花疫苗,以使他们在战场上,免受天花病毒的威胁

耶鲁公开课 - 生物医学工程探索课程节选