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过去十年中,随着对病毒性肝炎免疫学及流行病学的深入研究,人们对这种传染病的认识大大加深了。目前至少已有四种病源学上不同的病毒被鉴定出来了。最近发表的关于致病因素的材料证实,非甲、非乙型肝炎病毒广泛存在,是某些地区成年人急性肝炎的致病因素,是输血引起肝炎的重要原因。丁型(Delta)病毒也已引起人们的关注,特别是在南美洲,这种病毒可能是引起乙肝病毒携带者暴发急性肝炎的原因。最令人不安的是由乙肝引起的公共卫生保健问
In the past decade, with the in-depth study on the immunology and epidemiology of viral hepatitis, people have become much more aware of the epidemic. At least four disease-causing viruses have now been identified. Recently published material on the risk factors confirmed that non-A, non-B hepatitis virus is widespread, is a risk factor for acute hepatitis in adults in some areas, is an important cause of hepatitis caused by blood transfusion. The Delta virus has also attracted attention, especially in South America, and the virus may be the cause of hepatitis A virus carriers in acute hepatitis outbreaks. The most disturbing issue is public health care caused by hepatitis B.