you don't get sick. Or, if you do get sick, you usually only get a very mild version of an illness.When this happens, you are said to have protective immunity to a disease. Depending on the situation, immunity might last for months or years. You mi...
17. If you were stranded on a deserted island and you could have only one item, what would it be? 如果你被困在沙漠中但只能带一样东西,你会带什么? 没错,就是这个经典的问题,通...
更多内容请点击：【桑葛石原研翻译系列】疫苗抗体与自然感染抗体的相似性和潜在差 推荐文章