应用ＲＴ—ＰＣＲ技术对３７例住院病毒性肝炎患者作庚型肝炎病毒（ＨＧＶ）ＲＮＡ检测。结果７例阳性，阳性率为１８．９２％。其中１３例原因不明肝炎ＨＧＶ—ＲＮＡ阳性４例，阳性率为３０．７６％。男、女均是ＨＧＶ的易感者，传播途径与丙肝、乙肝可能相似，有各种临床类型，肝功能损害程度较轻，ＨＧＶ可单纯感染，也可与其他肝炎病毒同时或重叠感染。７例ＨＧＶ—ＲＮＡ阳性者，其中４例作肝组织病理检查，例７见合胞体巨细胞。 T-hepatitis G virus (HGV) RNA was detected in 37 patients with in-hospital viral hepatitis by RT-PCR. Results 7 cases were positive, the positive rate was 18.92%. Of the 13 patients, 4 were positive for HGV-RNA with unknown cause of hepatitis, the positive rate was 30.76%. Male and female are susceptible to HGV. The route of transmission may be similar to that of hepatitis C and hepatitis B. There are various clinical types, and liver injury is less severe. HGV can be infected alone or simultaneously with other hepatitis viruses. 7 cases of HGV-RNA positive, of which 4 cases for liver tissue pathology, see Example 7 syncytial giant cells.