欧洲志愿供血者中HEV感染率(通过检测IgG抗体确诊)约1～2％,与抗-HEV阳性率有关的危险因素尚不明确。有报道抗-HEV阳性率随年龄增长而升高,并提示与HCV感染有关。过去30年意大利南部那不勒斯地区发生过各种病毒性肝炎感染,因此作者于1994年5月对该地区一公共卫生所门诊病人进行了HEV感染调查,应用第二 The prevalence of HEV infection in European volunteer blood donors (confirmed by detection of IgG antibodies) is about 1-2%, and the risk factors associated with anti-HEV positive rates are not yet known. It has been reported anti-HEV positive rate increases with age, and prompted with the HCV infection. In the past 30 years, a variety of viral hepatitis infections occurred in Naples, southern Italy, so the authors conducted a HEV infection survey of outpatients at a public health clinic in the area in May 1994 using the second