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戊型肝炎病毒(hepatitis E virus,HEV)是引起非甲非乙型急性肝炎的致病因子之一,也是全球主要的肝炎病毒之一。每年全球新发生戊型肝炎急性感染病例高达300万例以上,约有7万人因戊肝感染而致死亡[1]。HEV感染主要发生在一些卫生条件较差的发展中国家,有的地区血清抗-HEV IgG阳性率高达50%[2]。迄今全世界已有50余次HEV
Hepatitis E virus (HEV) is one of the causative agents of non-A, non-B hepatitis and one of the major hepatitis viruses in the world. Every year, more than 3 million new cases of acute hepatitis E infection occur in the world and about 70,000 people die of hepatitis E infection [1]. HEV infection occurs mainly in some developing countries with poor sanitation conditions. Serum anti-HEV IgG positive rate is as high as 50% in some areas [2]. To date, there have been more than 50 HEVs worldwide