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1991年6月对808名中小学生进行HBV标志血清学检查,HBsAg阳性率4.33%;抗-HBs阳性率25.37%;抗-HBc阳性率33.91%;HBV感染率40.84%。HBV感染者中抗-HBc阳性比例最高(83.94%),其次抗-HBs,单测HBsAg仅能发现10.61%的HBV感染者。HBV感染者中单项抗-HBs阳性占15%,其中59.18%达到保护水平。对223名乙肝易感者接种痘苗重组DNA乙肝疫苗,首针免疫后一个月抗-HBs阳转率达到46.64%;首针免疫后三个月抗-HBs阳转率达到98.65%。
In 1991 June 808 primary and secondary school students HBV serology, HBsAg positive rate of 4.33%; anti-HBs positive rate of 25.37%; anti-HBc positive rate of 33.91%; HBV infection rate of 40.84%. The highest proportion of anti-HBc positive in HBV infected patients (83.94%), followed by anti-HBs and HBsAg only found 10.61% of HBV-infected patients. Of the HBV-infected individuals, 15% were anti-HBs positive, of which 59.18% achieved protection. Anti-HBs positive rate was 46.64% in one month after the first immunization, and the anti-HBs positive rate reached 98.65% in the first three months after the first immunization.