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某农村自然人群中HBV总感染率为56.4%,抗-HBc阳性率为39.2%,单项抗-HBc阳性率13.3%,表面系统及e系统均阴性的人群抗-HBc阳性率为23.4%,说明抗-HBc是比表面系统更为特异、敏感的检测指标。以血中抗-HBc滴度≥1:1000为具有传染性的指标,则HBsAg阳性者中40%以上有传染性;HBsAg低滴度或滴度下降甚至阴转,并非传染性肯定减弱;抗-HBs阳性者传染性也非全无;抗-HBe阳性人群的传染性不可忽视。提示未经抗-HBc检测的献血员并不能排除其传染性。
In a rural natural population, the total HBV infection rate was 56.4%, the anti-HBc positive rate was 39.2%, the single anti-HBc positive rate was 13.3%, and the positive rate of anti-HBc in the surface system and the negative in e system was 23.4% Anti-HBc is more specific than the surface system, sensitive detection indicators. In the blood of anti-HBc titer ≥ 1: 1000 as infectious indicators, then HBsAg-positive in more than 40% of infectious; HBsAg low titer or titer decline or even negative, not necessarily decreased infectivity; anti-anti -HBs positive nor contagious; anti-HBe positive population can not be ignored. Suggesting that blood donors who did not test for anti-HBc did not rule out their infectivity.