seronegative怎么读，seronegative什么意思，seronegative短语和例句

1.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.

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。

2.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.

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。

3.Crohn's disease is associated with a type of rheumatologic disease known as seronegative spondyloarthropathy.

克罗恩氏病与一种称为风湿性脊椎关节病的风湿性疾病有关。