So, they don't start killing all the cells in your respiratory system; they only kill the cells that are harboring the virus.

所以它们不会杀死所有呼吸系统内的细胞,只杀死那些被病毒感染的细胞

耶鲁公开课 - 生物医学工程探索课程节选

They know that these cells are harboring the virus because those cells have foreign antigens on their MHC1.

它们能知道哪些细胞窝藏病毒,因为这些细胞的MHC1上有外源抗体

耶鲁公开课 - 生物医学工程探索课程节选

An electron microscope would be unreliable, particularly for someone infected a long time, because the number of cells harboring virus genes would be diluted over time and difficult to detect, said McGowan, the New York and New Jersey chairman of the American Academy of HIV Medicine.

WSJ: Lawyer: NY man at center of HIV scare not positive