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非甲非乙型(NANB)肝炎普遍存在于全球,在成人的散发性肝炎及输血后肝炎中占有很大的比重。由于慢性携带者众多,流行广泛,潜伏期介于甲、乙型肝炎之间,临床上症状一般较轻,且易转为慢性,目前日益受到医学界的重视。本文就其流行病学、临床特征及其预防简述如下。流行病学特征(一)地理分布:NANB肝炎呈世界性流行,已报告的国家有:美国、中美洲、欧洲、澳大利亚、印度、日本、中东、尼泊尔和缅甸等国均有流行。NANB肝炎在病毒性
Non-A, non-B (NANB) hepatitis is prevalent in the world and accounts for a significant proportion of sporadic hepatitis and post-transfusion hepatitis in adults. Due to the large number of chronic carriers, the epidemic is widespread and the incubation period is between A and B. The clinical symptoms are generally mild and easily become chronic. At present, it is increasingly valued by the medical community. This article on its epidemiology, clinical features and prevention outlined below. Epidemiological characteristics (A) geographical distribution: NANB hepatitis is a worldwide epidemic, countries have been reported: the United States, Central America, Europe, Australia, India, Japan, the Middle East, Nepal and Myanmar are popular. NANB hepatitis is viral