So, Hepatitis is already infecting cells of their liver, their liver is actively making new virus.

乙肝病毒已经感染了他们的肝细胞,他们的肝脏正在迅速地产生新的病毒

耶鲁公开课 - 生物医学工程探索课程节选

So, if you look in the blood of patients that are infected with Hepatitis B you find a lot of Hepatitis B surface subunits, proteins without the nucleic acid circulating in their blood.

因此,如果你观察一下,已经感染乙肝病毒患者的血液,你会发现许多乙肝病毒的表面亚基,以及血液循环中存在没有核酸的蛋白质

耶鲁公开课 - 生物医学工程探索课程节选