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全世界约有2亿人是乙型肝炎病毒(HBV)的慢性感染和携带者,而我国的HBsAg 携带者约有一亿。HBV 主要通过这种携带者经输血、注射、针灸和使用血制品等途径引起广泛的传播。因此,掌握本地HBsAg 携带情况是非常重要的。作者于1989～1991年连续三年对上述两个行业进行了动态观察。对象与方法一,对象:三年来调查本市饮食、服务行业的从业人员,总共31721人,其中饮食
About 200 million people worldwide are chronic carriers and carriers of Hepatitis B virus (HBV), and our country has about 100 million HBsAg carriers. HBV causes widespread transmission through such carriers through blood transfusions, injections, acupuncture and the use of blood products. Therefore, it is very important to master the situation of local HBsAg carrier. The author in 1989 to 1991 for three consecutive years of the above two industries were observed. Subjects and Methods I. Object: In the past three years, the city’s catering and service industry practitioners were surveyed, with a total of 31,721 people, of whom the diet