分析了经临床和血清学确诊的散发性戊型肝炎１２７例的流行病学和临床特征。结果表明，患者以中年为主，平均４４．４±１３．５岁，男多于女，为５．７∶１。该病全年散发，３～５月份较多见、占４４．１％。患者以从事管理、经贸和经常外出人员为主。７９．５％的患者有经常在外就餐史，无家庭聚集和续发病例，推测传播途径可能与不洁饮食有关，但明确的感染来源不清。患者临床症状明显，预后较好，与同期住院的甲型肝炎比较存在着某些差别。 The epidemiological and clinical features of 127 cases of sporadic hepatitis E confirmed by clinic and serology were analyzed. The results showed that patients in the middle-aged, with an average of 44.4 ± 13.5 years, more men than women, was 5.7: 1. The disease is distributed throughout the year, 3 to May more common, accounting for 44.1%. Patients are mainly engaged in management, economic and trade and often go out. 79.5% of patients had frequent out-of-home meals, no cases of family aggregation and follow-up, suggesting that the route of transmission may be related to unclean diet, but the source of the clear infection is unclear. Patients with significant clinical symptoms, the prognosis is good, with the same period of hospitalization of hepatitis A there are some differences.