The chief offending antigen in haemolytic disease of the newborn is antigen d of the rhesus series . 新生儿溶血病起主要作用的抗原是RH系列的抗原D。
Glycoproteins act as important antigenic determinants to which host immunity is often directed . 糖蛋白是重要的抗原，决定族宿主的免疫性常常针对着它们。
Scientists worry about vaccines that depend on antigens collected from the serum of carriers . 科学家们对依靠从带病者血清中提取的抗原作为疫苗很不放心。
Each type evokes antibodies which protect against the homologous, but not heterologous virus . 每一种抗原型都能产生抗同种病毒的抗体，但对异种病毒则不能。
An antigen is any substance capable of eliciting an immune response when injected into a host animal . 抗原是任何注射于宿主动物体内都能引起免疫应答的物质。
To evade existing antibodies, the virus may change one or several of these antigenic determinants . 为躲避现有的抗体，病毒可能对一个或几个抗原定子加以改变。
Swine pox, which belongs to the pox disease complex, is caused by two antigenically different poxviruses . 猪痘属于痘病群，是由两种抗原上不同的痘病毒引起的。
If a piece of grafted skin contains an antigen different from the host's, the host will make antibodies against it . 如果一块移植的皮肤含有一种不同于宿主的抗原，宿主将产生抗体来对抗它。
No precipitate is formed if there is an extreme excess of antigen and in some systems, with an extreme excess of antibody . 如果在某些系统中，抗原极度过剩或抗体极度过剩，便不会形成沉淀。
Radioimmunoassy(ria)is one of the most sensitive tehniques presently available for the diagnosis of viral antigens or antibodies . 放射免疫试验（RIA）是目前适合于诊断病毒抗原或病毒抗体的最灵敏技术之一。
