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我国医科院病毒所等最近报导,对33例NANB肝炎和NANB肝炎献血员的血清及死于急性NANB肝炎尸肝匀浆和超薄切片进行了电镜观察,有12例发现了病毒样颗粒,这些颗粒可分四类:即类HBV颗粒,类疱疹病毒颗粒,呼肠病毒样颗粒和肝内质网的管状结构。血清学试验结果与电镜观察结果一致。NANB肝炎中75％无黄疸,一般无症状,若有则最初症状为无力和一种模糊的不适感,转氨酶轻度或中度升高,约50％患者转氨酶异常持续1年以上。急性转慢性在无黄疸型NANB病人中占51％,黄疸型病
Recently reported by the Chinese Academy of Medical Sciences and other viruses, 33 cases of NANB hepatitis and NANB hepatitis donors serum and died of acute NANB hepatitis dead liver homogenate and ultrathin sections were electron microscopy, 12 cases of virus-like particles found that these Particles can be divided into four categories: namely, HBV-like particles, herpes simplex virus particles, reovirus-like particles and the tubular structure of the liver endoplasmic reticulum. Serological test results and electron microscopy observations. 75% of NANB hepatitis is jaundice-free and generally asymptomatic. If the initial symptoms are weakness and a vague discomfort, mild or moderate transaminase increases, about 50% of patients with abnormal aminotransferases last more than 1 year. Acute to chronic non-jaundice NANB patients accounted for 51%, jaundice