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采用反转录聚合酶链反应，从40例输血后丙型肝炎和30树非甲非乙非丙非丁非戊型肝炎（HNA－E）患者的血清中检测庚型肝炎病毒核酸（HGVRNA），阳性率分别为10．0％（4／40）和6．7％（2／30）。对6例庚型肝炎的临床和病理初步观察提示该病具有以下特点：（1）主要通过输血感染；（2）很少出现黄疸，ALT多在100U／L以下；（3）临床症状较轻，多系体检发现，（4）一般降酶护肝药很难奏效，病情容易反复；（5）慢性化发生率较高；（6）肝脏病理改变较轻，多属CPH。
Hepatitis G virus nucleic acid (HGVRNA) was detected in sera of 40 patients with posttransfusion hepatitis C and 30 non-non-non-B non-hepatitis B hepatitis E (HNA-E) by reverse transcriptase-polymerase chain reaction The positive rates were 10.0% (4/40) and 6.7% (2/30) respectively. Preliminary clinical and pathological findings of 6 cases of hepatogastrostosis suggest that the disease has the following characteristics: (1) mainly through blood transfusion infection; (2) jaundice rarely occurs and ALT more than 100U / L; (3) mild clinical symptoms , Multi-line physical examination found that (4) the general enzyme reducing liver drug is difficult to work, the condition is easy to repeat; (5) a higher incidence of chronic; (6) liver pathological changes lighter, mostly belong to CPH.