[Analysis of the reentry status of blood donors with reactive bloodborne pathogen screening markers in Hangzhou City].

Objective: To explore the reentry rate of reactive blood donors in the bloodborne pathogen infection screening in Hangzhou City, and analyze the donation behavior of those who successfully returned. Methods: A retrospective analysis of the return data of blood donors with reactive bloodborne pathogen screening markers was conducted at Zhejiang Provincial Blood Center from June 2017 to May 2022. The reentry process for blood donors with reactive bloodborne pathogen screening markers in Hangzhou City is as follows: after the initial screening period of 6 months, donors can voluntarily apply for return to the blood center. Samples are collected and subjected to routine enzyme-linked immunosorbent assay (ELISA) screening for HBsAg, anti-HCV, HIV Ab/Ag, and anti-TP, as well as a single nucleic acid (HIV/HCV/HBV) test. For samples that show non-reactivity in both ELISA and nucleic acid tests, serum biomarker testing for the reasons of exclusion is performed using chemiluminescence immunoassay (CLIA), and those with non-reactivity are allowed to return. Results: A total of 4 583 reactive blood donors who met the criteria for re-entry applied for reentry, out of which 475 applications were received from donors in the Hangzhou area. Among these, 279 donors were successfully readmitted, resulting in a success rate of 58.74% (279/475). By the end of December 2021, out of the 174 donors who successfully returned, 114 donors chose to donate again. They collectively donated 39 530 ml of whole blood and 1 147.2 therapeutic doses of platelets. Among these, 21 donors once again showed reactivity for pathogen infection biomarkers, accounting for 18.42% (21/114). Conclusion: The reentry strategy has somewhat mitigated the attrition of blood donors. Nevertheless, there are instances where donors who were successfully readmitted show reactivity once more in the screening for pathogen infection biomarkers.目的： 分析杭州市经血液传播病原体感染标志物筛查反应性献血者的归队及归队成功者再次献血的情况。 方法： 回顾性分析2017年6月至2022年5月浙江省血液中心病原体感染标志物筛查反应性献血者归队数据。杭州市经血液传播病原体感染标志物反应性献血者归队流程为病原体感染标志物筛查反应性献血者自初次屏蔽期满6个月后，可依据自愿原则向血站提出归队申请，采样后进行常规 ELISA（酶联免疫吸附实验）（HBsAg、抗 HCV、HIV Ab/Ag、抗 TP）筛查和 1 次核酸（HIV/HCV/HBV）检测。对于 ELISA 和核酸无反应性的标本，再采用化学发光法（CLIA）进行屏蔽原因项目的血清学标志物检测，无反应性的允许归队。 结果： 符合申请归队条件的病原体感染标志物筛查反应性献血者合计4 583人，共收到杭州地区的献血者归队申请475人，归队成功279人，归队成功率58.74%（279/475）。2021年12月底前归队成功的174位献血者，有114人再次献血，合计献血量为全血39 530 ml，单采血小板1 147.2个治疗量，其中21人再次出现病原体感染标志物反应性，占18.42%（21/114）。 结论： 归队策略一定程度上减少了献血者的流失，但存在部分归队成功的献血者再次出现病原体感染标志物筛查反应性。.