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临床表现非甲非乙型(NANB)肝炎的诊断目前尚无特异性实验室诊断,故必须排除甲肝病毒、乙肝病毒、巨细胞病毒、传染性单核细胞增多症病毒等所引起的肝炎。此外尚应排除中毒性、药物性及酒精性肝病。潜伏期Dienstag综合文献上149例乙肝及550例NANB肝炎的潜伏期,计算出乙肝的平均潜伏期为11.8周,NANB者为7.8周。而甲型肝炎平均约为4周。可见NANB肝炎的潜伏期是介于甲肝与乙肝之间的。Megeis等报道一组医院内因输血发生的NANB肝炎,平均潜伏期仅27天。甚至有输血制品后1～2周即
Clinical manifestations Non-A non-B type (NANB) hepatitis diagnosis is currently no specific laboratory diagnosis, it is necessary to rule out hepatitis A virus, hepatitis B virus, cytomegalovirus, infectious mononucleosis virus caused by hepatitis. In addition should be ruled out toxic, drug-induced and alcoholic liver disease. Incubation Dienstag synthesis of 149 cases of hepatitis B and 550 cases of NANB hepatitis incubation period, the average incubation period of hepatitis B was calculated as 11.8 weeks, NANB was 7.8 weeks. Hepatitis A is about 4 weeks on average. It can be seen that the incubation period of NANB hepatitis is between hepatitis A and B. Megeis et al reported a group of intra-hospital transfusion NANB hepatitis, the average incubation period of only 27 days. Even 1 to 2 weeks after transfusion products