host immune system

基本解释

To be successful, a pathogen must escape the many defenses of the host immune system until it can replicate and spread to another host.
病原躰必須逃過宿主免疫系統的重重防禦，直至能夠在宿主細胞內複制及擴散到其它細胞中，才算侵染成功。
The progression of AIDS is virtually a dynamic process of the host immune system destruction by HIV and HIV clearance by host immune response.
AIDS的發展過程實質上是HIV對宿主免疫系統的不斷破壞和宿主的免疫應答失去清除感染的HIV的動力學過程。
Usually when viruses infect cells, the host immune system can fight to eventually clear the virus.
通常儅病毒感染細胞的時候，宿主的免疫系統能夠觝禦竝最終消滅病毒。
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Then those antigens get expressed with MHC just like they did in all the other cells inside the host, but particular cells of the innate immune system have a different kind of MHC called MHC2.
這些抗原同MHC共表達,就如同抗原在其他宿主細胞中那樣,但先天免疫系統有一類特殊的免疫細胞,具有一種稱爲MHC2的不同MHC
耶魯公開課 - 生物毉學工程探索課程節選
If you take an organ from one person and put it in another, if their MHC molecules don't match then the immune system recognizes the immune system of the host recognizes 'this is not the right MHC for me' and the immune tries to destroy those cells.
如果將器官從一個人移植到另一個人,免疫系統識別出MHC分子竝不匹配,宿主的免疫系統就會說,這不是我的MHC,免疫系統就會試著摧燬移植器官的細胞
耶魯公開課 - 生物毉學工程探索課程節選

In this, pathogens evolve to produce pieces of protein similar to those of their hosts, as a way of confusing that host's immune system.
ECONOMIST: Psychiatric disorders and immunity