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作者于1984年9月和1985年5月,分别对1016名大学生这一固定人群,用固相放射免疫法和美国Abbott公司生产的试剂药盒进行了两年HBV(乙型肝炎病毒)感染标记和新感染率的血清学研究。结果表明该人群两年HBV感染率分别为54.4%和56.9%,HBsAg(乙型肝炎表面抗原)阳性率分别为13.5%和19.1%。其感染者中均以抗-HBs和抗-HBc双项阳性者居多。在1984年9月到1985年5月间,HBV的新感染率为34.3%(159/463),阴转率为24.2%(134/553)。新感染者159人中以HBsAg和抗-HBc双项阳性者居多。说明HBV感染在一个自然人群中处于动态平衡状态。
In September 1984 and May 1985, a total of 1,016 undergraduates, a fixed population, were tested for HBV (hepatitis B virus) infection for two years using solid-phase radioimmunoassay and the kit manufactured by Abbott Company, USA And serological studies of new infection rates. The results showed that the two-year HBV infection rates were 54.4% and 56.9% respectively, and the positive rates of HBsAg (hepatitis B surface antigen) were 13.5% and 19.1% respectively. The majority of those infected were mostly anti-HBs and anti-HBc positive. Between September 1984 and May 1985, the new infection rate of HBV was 34.3% (159/463) and the negative conversion rate was 24.2% (134/553). Of the 159 newly infected persons, HBsAg and anti-HBc positive were the most common. That HBV infection in a natural population in a state of dynamic equilibrium.