病毒性肝炎(下简称肝炎)是当前发病率较高(仅次于细菌性痢疾)的传染病。由于病程较长,损害劳动力较为严重,对人民健康威胁极大。为探索肝炎的流行特征及乙型肝炎表面抗原(HBsAg)的人群分布情况,以便进一步搞好肝炎的查、防、管、治,保护职工、家属的身体健康,在党中央率领我们进行新的长征 Viral hepatitis (hereinafter referred to as hepatitis) is the current high incidence of infectious diseases (second only to bacterial dysentery). Due to the longer duration, more serious damage to the workforce, a great threat to people’s health. In order to explore the epidemiological characteristics of hepatitis and the population distribution of hepatitis B surface antigen (HBsAg) in order to further improve the investigation, prevention, management and treatment of hepatitis and protect the health of workers and their families, we led the party Central Committee to carry out new Long March