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病毒性乙型肝炎是当前发病率较高的传染病，乙型肝炎表面抗原（HBsAg）携带者面广、量大，是传播乙型肝炎的重要传染源之一，其管理问题亟待研究解决。1983～1985年，我们在重庆市6个工厂的人群中进行了乙型肝炎病毒感染调查，并对HBsAg阳性者进行动态观察。
Viral hepatitis B is a currently high incidence of infectious diseases. Hepatitis B surface antigen (HBsAg) carriers are widely distributed and large in quantity, and are one of the important sources of transmission of hepatitis B. The management of these diseases needs to be solved urgently. From 1983 to 1985, we conducted a Hepatitis B virus infection survey among 6 factories in Chongqing and observed the HBsAg positive patients.