戊型肝炎多见于发展中国家,尤以热带及亚热带地区为著。在这些国家中,暴发性流行可使数千人同时发病,流行间期亦见有散发病例。发达国家少有本病,但通过移民、旅游或雇工亦可发生“输入性肝炎”。尽快研制疫苗,根除戊型肝炎的流行是当务 Hepatitis E is more common in developing countries, especially in tropical and subtropical regions. In these countries, an outbreak of pandemics can cause the simultaneous onset of thousands of people, with sporadic cases also seen during the epidemic. Less developed disease in the developed countries, but through immigration, tourism or hiring workers can also occur “Enteric Hepatitis.” Vaccine development as soon as possible, eradication of hepatitis E epidemic is the task