“你好,外福来!我是流感疫苗,你可以叫我疫苗君。”“你好,疫苗君!你来得正好,我有好多问题想问你呢。”疫苗君的出现让外福来特别高兴。“那你就找对人了,有什么问题,尽管问吧!”疫苗君笑着说。“妈妈说今年忘了给我注射流感疫苗,所以,我被班里其他同学传染上了流感。你说,疫苗真的这么神奇吗?什么是疫苗,它又是怎么起作用的?”外福来说出了心中的疑惑。 “” Hello, the vaccine is king! You are right, I have many questions to ask you. “The emergence of vaccine Jun Fu Wai to be particularly happy. ”Then you find someone, what’s the problem, though asked!“ The vaccine said with a smile. ”Mom said I had been vaccinated against flu this year, so I was caught in the flu by other classmates in the class. You said the vaccine is really amazing? What is a vaccine and how does it work?" Out the blessing out of the hearts of doubt.