所有血清样本都被送往班吉的巴斯德研究所进行检测，ELISA检测的结果均为IgM阴性。

All these serum samples were sent to the Institute Pasteur of Bangui for investigation, and were IgM negative by ELISA test.

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采用ELISA法对该人及50名其他接触者的血清样本进行的实验室检测均呈阴性。

Laboratory tests by ELISA method of serum samples for this and 50 other contact were found to be negative.

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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.

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