北京市1 091例严重急性呼吸综合征临床诊断病例流行病学史再调查

目的　对北京市无明确流行病学史的 10 91例严重急性呼吸综合征 (SARS)临床诊断病例进行再次调查 ,了解其真实的流行病学史。方法　选择截止到 2 0 0 3年 6月 9日北京市全部无明确流行病学史的SARS临床诊断病例为调查对象 ,采用流行病学问卷调查法进行相关项目的调查。结果　调查时间为 2 0 0 3年 6月 9～ 30日 ,结果显示 ,10 91例临床诊断病例中 15 9%的患者通过补充调查找到了与SARS患者的接触史 ;10 5 %的患者存在续发史 ;4 6 5 %的患者找到了医院内感染史。流行病学史综合判定结果显示 ,在无明确流行病学史的临床诊断病例中有 4 6 6 %的患者通过补充调查找到了可能的流行病学史。结论　通过以流行病学史为主要内容的补充调查 ,部分患者可以找到相应的感染来源

Re-survey on epidemiological history of 1 091 probable cases with severe acute respiratory syndrome in Beijing

Objective To know their real epidemiological histories in 1 091 probale cases of severe acute respiratory syndrome (SARS) without definite history of contact with SARS patients in the first survey Methods All the probable SARS cases until June 9, 2003 without definite history of contact with SARS patients in the first epidemiological survey were included in a re survey with questionnaire The second survey was carried out during June 9 to 30, 2003 Results The results showed that history of contact with other SARS patients was obtained in 15 9% of 1 091 probale SRAS cases in the second survey, transmission of SARS to others was found in 10 5% of them, and source of infection in hospital was found in 46 5% Comprehensive judgement based on epidemiological history showed that probale history of contact with SARS patients could be found in 72 9 % of 1 091 probale cases of SARS in the second survey. Conclusion Source of infection could be found through additional survey in part of probale cases of SARS without it in initial epidemiological survey