美国有大约125万的慢性乙型肝炎患者，以及320万的慢性丙型肝炎患者。
In the United States 1.25 million people have chronic HBV, while 3.2 million have chronic HCV.
对48例血清HCV-RNA阳性和35例HCV-RNA阴性的慢性丙型肝炎（慢丙肝）患者外周血T淋巴细胞亚群进行观察，并与20例正常人对照。
Peripheral T-lymphocyte subsets of 48 HCV-RNA seropositive and 35 HCV-RNA seronegative chronic hepatitis -C patients were investigated arid 20 normal subjects were kept as control.
在自然慢性丙型肝炎有很大的差别从一个人到另一个。
The natural course of chronic hepatitis C varies considerably from one person to another.
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