1·Clone and express bradyzoite antigen 1(BAG1) gene of T. gondii, and analyze the immunoreactivity of the recombinant product.
克隆与表达弓形虫缓殖子期特异性抗原1（BAG1）的基因，并分析重组抗原的免疫反应性。
2·Scientists have recently discovered they can reduce the amount of antigen used to produce pandemic influenza vaccines by using water-in-oil substances that enhance the immune response.
科学家最近发现，如果使用油包水型物质来强化免疫反应，生产大流行性流感疫苗所使用的抗原量就可以减少。
3·Lassa fever is diagnosed by detection of Lassa antigen, anti-Lassa antibodies, or virus isolation techniques.
拉沙热通过发现拉沙抗原、抗拉沙抗体或病毒分离技术进行诊断。
4·These trials will give a better idea of the number of doses required for a person to be immunized, as well as of the quantity on active principle (antigen) needed in each vaccine dose.
通过这些试验，将能够更好地了解一个人需要多少剂疫苗才能获得免疫，以及每剂疫苗中必须含有多少有效成分(抗原)。
5·Though the contribution to European DNA from Neanderthals is only about 6 percent, that small percentage accounts for half the observed human leukocyte antigen alleles.
虽然尼人遗传给欧洲人的DNA仅有6%，但是人类目前所发现的白细胞抗原等位基因中，有一半来源于尼人的贡献。