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病毒性肝炎包括甲型、乙型、非甲非乙型和丁型四型。这四型肝炎在临床上没有多大区别,所以在诊断上不能及时确定其肝炎型别,在采取预防措施上造成一定困难。因此,对四型肝炎从病原学、流行病、临床、检验及预防等方面加以区别,摸清其规律,在预防上有的放矢,才能做到防患于未然。 在病原上四型肝炎是由不同类型的肝炎病毒引起,甲型肝炎病毒引起甲型肝炎;乙型肝炎病毒引起乙型肝炎;非甲非乙型肝炎病毒引起非甲非乙型肝炎;丁型肝炎病毒即因子引起丁型肝炎。
Viral hepatitis includes A, B, non-A non-B and D type. This four-type hepatitis is not much difference in clinical practice, so the diagnosis can not be promptly determine the type of hepatitis, precautions in the implementation of certain difficulties. Therefore, it is necessary to take precautionary measures to distinguish the four types of hepatitis from those of etiology, epidemiology, clinical practice, testing and prevention so as to find out its regularity and aim at prevention. Hepatitis C is caused by a different type of hepatitis virus in the pathogen, Hepatitis A virus causes Hepatitis A, Hepatitis B virus causes Hepatitis B, Non-A, non-Hepatitis B virus causes non-A, non-Hepatitis B, Hepatitis virus factor that causes hepatitis d.