我国某县血液筛选后传播艾滋病病毒的残余危险度研究

目的 了解有偿献血员筛查后仍存在的经输血感染ＨＩＶ的危险度，评价现有筛查措施的效果及为进一步改进提供科学依据。方法 选择献血员中ＨＩＶ感染水平中等的某县中心血站，用模型法和回顾法进行了经输血传播ＨＩＶ的残余危险研究度。结果 该县血站于１９９５年６月 １９９８年３月期间检出的１９例ＨＩＶ抗体阳性者中有７便为多次献血员，在近期内输过期其血的２２例受血者中，找到９例存活者，证实其中１例输血后感染ＨＩＶ》

Residual risk research of HIV infection after blood screening in one county in China

Objective To estimate the risk of HIV infections from blood transfusions, to evaluate existing blood screening measures, and to make recommendations to improve current blood screening practices. Methods Research was conducted in a county blood station. A statistical model and retrospective method were used to analyse the data. Results Between June 1995 and March 1998, 19 blood donors tested positive for HIV antibodies and among them, 7 were repeat blood donors. Twenty-two blood recipients were identified from these 7 donors during six months, 9 are still alive today, while one patient was infected with HIV from a blood transfusion while undergoing an operation. The residual risk of the blood station using a statistical model and retrospective methods were 1/ 1 773 -1/ 28 867 and 1/ 2 008- 1/ 2 730 donations respectively. Conclusion The residual risk of HIV after screening in the county blood station was high. We recommend further improvements to current blood screening practices.