北京地区无偿献血人群中SARS流行病学调查

目的　明确严重急性呼吸综合征冠状病毒是否在北京疫区无偿献血人群中存在感染 ,为制订预防输血传播SARS的相关规定提供流行病学依据。方法　对 4 6 19份标本 (含SARS冠状病毒流行期北京疫区街头无偿献血人群血液筛查标本 2 35 7份 ,非流行期北京市街头无偿献血者人群留样标本 10 79份 ,流行期非疫区山东、湖南外调血无偿献血标本 1183份 ) ,作SARS冠状病毒IgM、IgG以及总抗体检测 ,对初筛阳性结果采用献血者追踪咨询和核酸检测的方法确认 ,用统计学方法分析最终的检测结果。结果　SARS流行期间北京疫区献血人群中未见SARS冠状病毒隐性感染者和出现流行感染情况。结论　预防经血传播SARS冠状病毒的重点应放在献血者征募和健康检查咨询方面 ,而非血液中SARS冠状病毒标记物的筛查。

Investigation on SARS in Beijing volunteer blood donors

Objective To investigate the epidemic of severe acute respiratory symdrome(SARS) in Beijing blood donors and make guidance for assuring blood safety during SARS epidemic.Methods Using SARSCoV Ab ELISA Kits, specimens from 2357 donors from Beijing during SARS epidemic phase,1079 preserved samples from Beijing donors collected well before the SARS epidemic,1183 donors from Shandong and Hunan provinces where no SARS had been reported were screed for IgG,IgM,and total antibodies against SARS coronavirus.Donors with reactive samples were followed up,RT PCR were performed to detect the SARS CoV RNA.Results There was no significant difference between the 3 groups of specimens and there was no SARS epidemic or subclinical SARS infections among Beijing blood donors.Conclusion Instead of blood SARS CoV Ab screening, we should focus on the donors inquiry,physical examination and education to prevent SARS transmission by transfusion.