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乙型肝炎是一种发病率较高的常见传染病,乙型肝炎表面抗原(HB_sAg)阳性者,是乙型肝炎主要传染源。HB_sAg是乙型肝炎病毒(HBV)感染的特异性标志,是肝炎病因诊断的一项重要指标。目前,HBV感染遍及世界各地,带毒者多。据报道,全世界HB_sAg携带者为2亿,且以发展中国家为多。在我国,据1986～1988年河南、上海等5省市的流行病学调查结果,人群中乙型肝炎表面抗原阳性率(携带率)为10.34％。据此推
Hepatitis B is a common infectious disease with a high incidence. Hepatitis B surface antigen (HBsAg) positive persons are the major source of hepatitis B infection. HB_sAg is a specific marker of Hepatitis B virus (HBV) infection and is an important indicator of the etiological diagnosis of hepatitis. At present, HBV infection spreads all over the world, with many infected people. It is reported that there are 200 million HBsAg carriers in the world and more in developing countries. In our country, according to the epidemiological survey results of 5 provinces and municipalities in Henan and Shanghai from 1986 to 1988, the positive rate (carrying rate) of hepatitis B surface antigen in the population was 10.34%. Push accordingly